Home / 135,085.47-202,605.15-45,115.73

Finding the Fourth Proportional to 135,085.47, 202,605.15 and 45,115.73

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Solution

The fourth proportional to 135,085.47, 202,605.15 and 45,115.73 is: 67,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,085.47 : 202,605.15 = 45,115.73 : x
  2. Step 2: Convert to fraction form
    135,085.47/202,605.15 = 45,115.73/x
  3. Step 3: Cross multiply
    135,085.47x = 202,605.15 × 45,115.73
  4. Step 4: Simplify right side
    135,085.47x = 9,140,680,045.82
  5. Step 5: Solve for x
    x = 9,140,680,045.82/135,085.47
  6. Step 6: Final answer
    x = 67,665.90

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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.