Home / 102,187,867.20-140,998,205.54-58,719,405.12

Finding the Fourth Proportional to 102,187,867.20, 140,998,205.54 and 58,719,405.12

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Solution

The fourth proportional to 102,187,867.20, 140,998,205.54 and 58,719,405.12 is: 81,020,682.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,187,867.20 : 140,998,205.54 = 58,719,405.12 : x
  2. Step 2: Convert to fraction form
    102,187,867.20/140,998,205.54 = 58,719,405.12/x
  3. Step 3: Cross multiply
    102,187,867.20x = 140,998,205.54 × 58,719,405.12
  4. Step 4: Simplify right side
    102,187,867.20x = 8,279,330,752,296,287
  5. Step 5: Solve for x
    x = 8,279,330,752,296,287/102,187,867.20
  6. Step 6: Final answer
    x = 81,020,682.58

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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.