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Finding the Fourth Proportional to 135,644.76, 187,199.10 and 75,220.92

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Solution

The fourth proportional to 135,644.76, 187,199.10 and 75,220.92 is: 103,810.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,644.76 : 187,199.10 = 75,220.92 : x
  2. Step 2: Convert to fraction form
    135,644.76/187,199.10 = 75,220.92/x
  3. Step 3: Cross multiply
    135,644.76x = 187,199.10 × 75,220.92
  4. Step 4: Simplify right side
    135,644.76x = 14,081,288,525.17
  5. Step 5: Solve for x
    x = 14,081,288,525.17/135,644.76
  6. Step 6: Final answer
    x = 103,810.04

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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.