Home / 138,461.86-207,702.78-49,716.10

Finding the Fourth Proportional to 138,461.86, 207,702.78 and 49,716.10

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Solution

The fourth proportional to 138,461.86, 207,702.78 and 49,716.10 is: 74,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,461.86 : 207,702.78 = 49,716.10 : x
  2. Step 2: Convert to fraction form
    138,461.86/207,702.78 = 49,716.10/x
  3. Step 3: Cross multiply
    138,461.86x = 207,702.78 × 49,716.10
  4. Step 4: Simplify right side
    138,461.86x = 10,326,172,180.76
  5. Step 5: Solve for x
    x = 10,326,172,180.76/138,461.86
  6. Step 6: Final answer
    x = 74,577.74

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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.