Home / 137,608,691.09-189,900,024.69-75,729,029.64

Finding the Fourth Proportional to 137,608,691.09, 189,900,024.69 and 75,729,029.64

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Solution

The fourth proportional to 137,608,691.09, 189,900,024.69 and 75,729,029.64 is: 104,506,077.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,608,691.09 : 189,900,024.69 = 75,729,029.64 : x
  2. Step 2: Convert to fraction form
    137,608,691.09/189,900,024.69 = 75,729,029.64/x
  3. Step 3: Cross multiply
    137,608,691.09x = 189,900,024.69 × 75,729,029.64
  4. Step 4: Simplify right side
    137,608,691.09x = 14,380,944,598,385,742
  5. Step 5: Solve for x
    x = 14,380,944,598,385,742/137,608,691.09
  6. Step 6: Final answer
    x = 104,506,077.96

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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.