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Finding the Fourth Proportional to 134,149.47, 185,085.88 and 80,414.88

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Solution

The fourth proportional to 134,149.47, 185,085.88 and 80,414.88 is: 110,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,149.47 : 185,085.88 = 80,414.88 : x
  2. Step 2: Convert to fraction form
    134,149.47/185,085.88 = 80,414.88/x
  3. Step 3: Cross multiply
    134,149.47x = 185,085.88 × 80,414.88
  4. Step 4: Simplify right side
    134,149.47x = 14,883,658,975.89
  5. Step 5: Solve for x
    x = 14,883,658,975.89/134,149.47
  6. Step 6: Final answer
    x = 110,948.32

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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.