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Finding the Fourth Proportional to 147,314.88, 203,294.88 and 80,251.20

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Solution

The fourth proportional to 147,314.88, 203,294.88 and 80,251.20 is: 110,746.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,314.88 : 203,294.88 = 80,251.20 : x
  2. Step 2: Convert to fraction form
    147,314.88/203,294.88 = 80,251.20/x
  3. Step 3: Cross multiply
    147,314.88x = 203,294.88 × 80,251.20
  4. Step 4: Simplify right side
    147,314.88x = 16,314,658,073.86
  5. Step 5: Solve for x
    x = 16,314,658,073.86/147,314.88
  6. Step 6: Final answer
    x = 110,746.84

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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.