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Finding the Fourth Proportional to 120,755.52, 166,526.52 and 72,349.62

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Solution

The fourth proportional to 120,755.52, 166,526.52 and 72,349.62 is: 99,772.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,755.52 : 166,526.52 = 72,349.62 : x
  2. Step 2: Convert to fraction form
    120,755.52/166,526.52 = 72,349.62/x
  3. Step 3: Cross multiply
    120,755.52x = 166,526.52 × 72,349.62
  4. Step 4: Simplify right side
    120,755.52x = 12,048,130,441.92
  5. Step 5: Solve for x
    x = 12,048,130,441.92/120,755.52
  6. Step 6: Final answer
    x = 99,772.92

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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.