Home / 123,591.36-170,549.40-69,873.21

Finding the Fourth Proportional to 123,591.36, 170,549.40 and 69,873.21

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Solution

The fourth proportional to 123,591.36, 170,549.40 and 69,873.21 is: 96,421.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,591.36 : 170,549.40 = 69,873.21 : x
  2. Step 2: Convert to fraction form
    123,591.36/170,549.40 = 69,873.21/x
  3. Step 3: Cross multiply
    123,591.36x = 170,549.40 × 69,873.21
  4. Step 4: Simplify right side
    123,591.36x = 11,916,834,041.57
  5. Step 5: Solve for x
    x = 11,916,834,041.57/123,591.36
  6. Step 6: Final answer
    x = 96,421.26

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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.