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Finding the Fourth Proportional to 136,341.52, 188,149.80 and 75,910.84

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Solution

The fourth proportional to 136,341.52, 188,149.80 and 75,910.84 is: 104,756.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,341.52 : 188,149.80 = 75,910.84 : x
  2. Step 2: Convert to fraction form
    136,341.52/188,149.80 = 75,910.84/x
  3. Step 3: Cross multiply
    136,341.52x = 188,149.80 × 75,910.84
  4. Step 4: Simplify right side
    136,341.52x = 14,282,609,363.83
  5. Step 5: Solve for x
    x = 14,282,609,363.83/136,341.52
  6. Step 6: Final answer
    x = 104,756.13

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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.