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Finding the Fourth Proportional to 157,235.46, 216,982.13 and 85,614.18

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Solution

The fourth proportional to 157,235.46, 216,982.13 and 85,614.18 is: 118,146.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,235.46 : 216,982.13 = 85,614.18 : x
  2. Step 2: Convert to fraction form
    157,235.46/216,982.13 = 85,614.18/x
  3. Step 3: Cross multiply
    157,235.46x = 216,982.13 × 85,614.18
  4. Step 4: Simplify right side
    157,235.46x = 18,576,746,706.53
  5. Step 5: Solve for x
    x = 18,576,746,706.53/157,235.46
  6. Step 6: Final answer
    x = 118,146.04

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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.