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Finding the Fourth Proportional to 113,448.87, 156,549.87 and 66,874.32

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Solution

The fourth proportional to 113,448.87, 156,549.87 and 66,874.32 is: 92,280.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,448.87 : 156,549.87 = 66,874.32 : x
  2. Step 2: Convert to fraction form
    113,448.87/156,549.87 = 66,874.32/x
  3. Step 3: Cross multiply
    113,448.87x = 156,549.87 × 66,874.32
  4. Step 4: Simplify right side
    113,448.87x = 10,469,166,102.34
  5. Step 5: Solve for x
    x = 10,469,166,102.34/113,448.87
  6. Step 6: Final answer
    x = 92,280.92

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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.