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Finding the Fourth Proportional to 133,382.40, 200,008.80 and 74,155.20

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Solution

The fourth proportional to 133,382.40, 200,008.80 and 74,155.20 is: 111,196.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,382.40 : 200,008.80 = 74,155.20 : x
  2. Step 2: Convert to fraction form
    133,382.40/200,008.80 = 74,155.20/x
  3. Step 3: Cross multiply
    133,382.40x = 200,008.80 × 74,155.20
  4. Step 4: Simplify right side
    133,382.40x = 14,831,692,565.76
  5. Step 5: Solve for x
    x = 14,831,692,565.76/133,382.40
  6. Step 6: Final answer
    x = 111,196.77

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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.