Home / 149,300.93-206,034.22-81,317.69

Finding the Fourth Proportional to 149,300.93, 206,034.22 and 81,317.69

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Solution

The fourth proportional to 149,300.93, 206,034.22 and 81,317.69 is: 112,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,300.93 : 206,034.22 = 81,317.69 : x
  2. Step 2: Convert to fraction form
    149,300.93/206,034.22 = 81,317.69/x
  3. Step 3: Cross multiply
    149,300.93x = 206,034.22 × 81,317.69
  4. Step 4: Simplify right side
    149,300.93x = 16,754,226,831.35
  5. Step 5: Solve for x
    x = 16,754,226,831.35/149,300.93
  6. Step 6: Final answer
    x = 112,217.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.