Home / 138,566.95-207,854.30-45,072.70

Finding the Fourth Proportional to 138,566.95, 207,854.30 and 45,072.70

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Solution

The fourth proportional to 138,566.95, 207,854.30 and 45,072.70 is: 67,610.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,566.95 : 207,854.30 = 45,072.70 : x
  2. Step 2: Convert to fraction form
    138,566.95/207,854.30 = 45,072.70/x
  3. Step 3: Cross multiply
    138,566.95x = 207,854.30 × 45,072.70
  4. Step 4: Simplify right side
    138,566.95x = 9,368,555,269.84
  5. Step 5: Solve for x
    x = 9,368,555,269.84/138,566.95
  6. Step 6: Final answer
    x = 67,610.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.