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Finding the Fourth Proportional to 155,436.73, 214,502.70 and 88,368.73

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Solution

The fourth proportional to 155,436.73, 214,502.70 and 88,368.73 is: 121,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,436.73 : 214,502.70 = 88,368.73 : x
  2. Step 2: Convert to fraction form
    155,436.73/214,502.70 = 88,368.73/x
  3. Step 3: Cross multiply
    155,436.73x = 214,502.70 × 88,368.73
  4. Step 4: Simplify right side
    155,436.73x = 18,955,331,180.57
  5. Step 5: Solve for x
    x = 18,955,331,180.57/155,436.73
  6. Step 6: Final answer
    x = 121,948.85

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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.