Home / 147,017.09-220,354.74-66,934.61

Finding the Fourth Proportional to 147,017.09, 220,354.74 and 66,934.61

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Solution

The fourth proportional to 147,017.09, 220,354.74 and 66,934.61 is: 100,324.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,017.09 : 220,354.74 = 66,934.61 : x
  2. Step 2: Convert to fraction form
    147,017.09/220,354.74 = 66,934.61/x
  3. Step 3: Cross multiply
    147,017.09x = 220,354.74 × 66,934.61
  4. Step 4: Simplify right side
    147,017.09x = 14,749,357,481.78
  5. Step 5: Solve for x
    x = 14,749,357,481.78/147,017.09
  6. Step 6: Final answer
    x = 100,324.11

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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.