Home / 123,765,088.32-170,785,808.64-71,557,473.60

Finding the Fourth Proportional to 123,765,088.32, 170,785,808.64 and 71,557,473.60

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Solution

The fourth proportional to 123,765,088.32, 170,785,808.64 and 71,557,473.60 is: 98,743,524.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,765,088.32 : 170,785,808.64 = 71,557,473.60 : x
  2. Step 2: Convert to fraction form
    123,765,088.32/170,785,808.64 = 71,557,473.60/x
  3. Step 3: Cross multiply
    123,765,088.32x = 170,785,808.64 × 71,557,473.60
  4. Step 4: Simplify right side
    123,765,088.32x = 12,221,000,993,011,450
  5. Step 5: Solve for x
    x = 12,221,000,993,011,450/123,765,088.32
  6. Step 6: Final answer
    x = 98,743,524.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.