Home / 157,315.14-217,098.51-89,321.31

Finding the Fourth Proportional to 157,315.14, 217,098.51 and 89,321.31

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Solution

The fourth proportional to 157,315.14, 217,098.51 and 89,321.31 is: 123,265.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,315.14 : 217,098.51 = 89,321.31 : x
  2. Step 2: Convert to fraction form
    157,315.14/217,098.51 = 89,321.31/x
  3. Step 3: Cross multiply
    157,315.14x = 217,098.51 × 89,321.31
  4. Step 4: Simplify right side
    157,315.14x = 19,391,523,312.25
  5. Step 5: Solve for x
    x = 19,391,523,312.25/157,315.14
  6. Step 6: Final answer
    x = 123,265.46

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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.