Home / 139,519.83-209,279.27-38,317.97

Finding the Fourth Proportional to 139,519.83, 209,279.27 and 38,317.97

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Solution

The fourth proportional to 139,519.83, 209,279.27 and 38,317.97 is: 57,476.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,519.83 : 209,279.27 = 38,317.97 : x
  2. Step 2: Convert to fraction form
    139,519.83/209,279.27 = 38,317.97/x
  3. Step 3: Cross multiply
    139,519.83x = 209,279.27 × 38,317.97
  4. Step 4: Simplify right side
    139,519.83x = 8,019,156,712.11
  5. Step 5: Solve for x
    x = 8,019,156,712.11/139,519.83
  6. Step 6: Final answer
    x = 57,476.83

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1.5x scale

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.