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Finding the Fourth Proportional to 123,787.20, 185,680.80 and 35,039.55

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Solution

The fourth proportional to 123,787.20, 185,680.80 and 35,039.55 is: 52,559.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,787.20 : 185,680.80 = 35,039.55 : x
  2. Step 2: Convert to fraction form
    123,787.20/185,680.80 = 35,039.55/x
  3. Step 3: Cross multiply
    123,787.20x = 185,680.80 × 35,039.55
  4. Step 4: Simplify right side
    123,787.20x = 6,506,171,675.64
  5. Step 5: Solve for x
    x = 6,506,171,675.64/123,787.20
  6. Step 6: Final answer
    x = 52,559.33

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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.