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Finding the Fourth Proportional to 157,151.32, 216,873.42 and 85,535.98

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Solution

The fourth proportional to 157,151.32, 216,873.42 and 85,535.98 is: 118,042.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,151.32 : 216,873.42 = 85,535.98 : x
  2. Step 2: Convert to fraction form
    157,151.32/216,873.42 = 85,535.98/x
  3. Step 3: Cross multiply
    157,151.32x = 216,873.42 × 85,535.98
  4. Step 4: Simplify right side
    157,151.32x = 18,550,480,515.65
  5. Step 5: Solve for x
    x = 18,550,480,515.65/157,151.32
  6. Step 6: Final answer
    x = 118,042.16

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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.