Home / 123,740.40-170,762.10-75,993.24

Finding the Fourth Proportional to 123,740.40, 170,762.10 and 75,993.24

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Solution

The fourth proportional to 123,740.40, 170,762.10 and 75,993.24 is: 104,870.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,740.40 : 170,762.10 = 75,993.24 : x
  2. Step 2: Convert to fraction form
    123,740.40/170,762.10 = 75,993.24/x
  3. Step 3: Cross multiply
    123,740.40x = 170,762.10 × 75,993.24
  4. Step 4: Simplify right side
    123,740.40x = 12,976,765,248.20
  5. Step 5: Solve for x
    x = 12,976,765,248.20/123,740.40
  6. Step 6: Final answer
    x = 104,870.88

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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.