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Finding the Fourth Proportional to 127,150.98, 175,068.27 and 107,989.62

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Solution

The fourth proportional to 127,150.98, 175,068.27 and 107,989.62 is: 148,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,150.98 : 175,068.27 = 107,989.62 : x
  2. Step 2: Convert to fraction form
    127,150.98/175,068.27 = 107,989.62/x
  3. Step 3: Cross multiply
    127,150.98x = 175,068.27 × 107,989.62
  4. Step 4: Simplify right side
    127,150.98x = 18,905,555,951.36
  5. Step 5: Solve for x
    x = 18,905,555,951.36/127,150.98
  6. Step 6: Final answer
    x = 148,685.88

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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.