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Finding the Fourth Proportional to 127,000.10, 175,265.84 and 72,557.03

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Solution

The fourth proportional to 127,000.10, 175,265.84 and 72,557.03 is: 100,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,000.10 : 175,265.84 = 72,557.03 : x
  2. Step 2: Convert to fraction form
    127,000.10/175,265.84 = 72,557.03/x
  3. Step 3: Cross multiply
    127,000.10x = 175,265.84 × 72,557.03
  4. Step 4: Simplify right side
    127,000.10x = 12,716,769,430.41
  5. Step 5: Solve for x
    x = 12,716,769,430.41/127,000.10
  6. Step 6: Final answer
    x = 100,131.96

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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.