Home / 137,023.16-205,394.68-77,733.60

Finding the Fourth Proportional to 137,023.16, 205,394.68 and 77,733.60

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Solution

The fourth proportional to 137,023.16, 205,394.68 and 77,733.60 is: 116,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,023.16 : 205,394.68 = 77,733.60 : x
  2. Step 2: Convert to fraction form
    137,023.16/205,394.68 = 77,733.60/x
  3. Step 3: Cross multiply
    137,023.16x = 205,394.68 × 77,733.60
  4. Step 4: Simplify right side
    137,023.16x = 15,966,067,897.25
  5. Step 5: Solve for x
    x = 15,966,067,897.25/137,023.16
  6. Step 6: Final answer
    x = 116,520.94

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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.