Home / 137,310.27-205,987.61-42,518.17

Finding the Fourth Proportional to 137,310.27, 205,987.61 and 42,518.17

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Solution

The fourth proportional to 137,310.27, 205,987.61 and 42,518.17 is: 63,784.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,310.27 : 205,987.61 = 42,518.17 : x
  2. Step 2: Convert to fraction form
    137,310.27/205,987.61 = 42,518.17/x
  3. Step 3: Cross multiply
    137,310.27x = 205,987.61 × 42,518.17
  4. Step 4: Simplify right side
    137,310.27x = 8,758,215,811.20
  5. Step 5: Solve for x
    x = 8,758,215,811.20/137,310.27
  6. Step 6: Final answer
    x = 63,784.13

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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.