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Finding the Fourth Proportional to 156,640.74, 216,167.46 and 88,657.71

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Solution

The fourth proportional to 156,640.74, 216,167.46 and 88,657.71 is: 122,349.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,640.74 : 216,167.46 = 88,657.71 : x
  2. Step 2: Convert to fraction form
    156,640.74/216,167.46 = 88,657.71/x
  3. Step 3: Cross multiply
    156,640.74x = 216,167.46 × 88,657.71
  4. Step 4: Simplify right side
    156,640.74x = 19,164,911,980.12
  5. Step 5: Solve for x
    x = 19,164,911,980.12/156,640.74
  6. Step 6: Final answer
    x = 122,349.47

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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.