Home / 157,477.59-217,354.19-100,105.70

Finding the Fourth Proportional to 157,477.59, 217,354.19 and 100,105.70

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Solution

The fourth proportional to 157,477.59, 217,354.19 and 100,105.70 is: 138,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,477.59 : 217,354.19 = 100,105.70 : x
  2. Step 2: Convert to fraction form
    157,477.59/217,354.19 = 100,105.70/x
  3. Step 3: Cross multiply
    157,477.59x = 217,354.19 × 100,105.70
  4. Step 4: Simplify right side
    157,477.59x = 21,758,391,750.58
  5. Step 5: Solve for x
    x = 21,758,391,750.58/157,477.59
  6. Step 6: Final answer
    x = 138,168.18

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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.