Home / 157,185.64-216,925.86-90,139.24

Finding the Fourth Proportional to 157,185.64, 216,925.86 and 90,139.24

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Solution

The fourth proportional to 157,185.64, 216,925.86 and 90,139.24 is: 124,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,185.64 : 216,925.86 = 90,139.24 : x
  2. Step 2: Convert to fraction form
    157,185.64/216,925.86 = 90,139.24/x
  3. Step 3: Cross multiply
    157,185.64x = 216,925.86 × 90,139.24
  4. Step 4: Simplify right side
    157,185.64x = 19,553,532,156.75
  5. Step 5: Solve for x
    x = 19,553,532,156.75/157,185.64
  6. Step 6: Final answer
    x = 124,397.70

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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.