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Finding the Fourth Proportional to 155,503.80, 233,212.56 and 66,737.56

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Solution

The fourth proportional to 155,503.80, 233,212.56 and 66,737.56 is: 100,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,503.80 : 233,212.56 = 66,737.56 : x
  2. Step 2: Convert to fraction form
    155,503.80/233,212.56 = 66,737.56/x
  3. Step 3: Cross multiply
    155,503.80x = 233,212.56 × 66,737.56
  4. Step 4: Simplify right side
    155,503.80x = 15,564,037,215.75
  5. Step 5: Solve for x
    x = 15,564,037,215.75/155,503.80
  6. Step 6: Final answer
    x = 100,087.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.