Home / 129,547.50-194,237.76-54,647.61

Finding the Fourth Proportional to 129,547.50, 194,237.76 and 54,647.61

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Solution

The fourth proportional to 129,547.50, 194,237.76 and 54,647.61 is: 81,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,547.50 : 194,237.76 = 54,647.61 : x
  2. Step 2: Convert to fraction form
    129,547.50/194,237.76 = 54,647.61/x
  3. Step 3: Cross multiply
    129,547.50x = 194,237.76 × 54,647.61
  4. Step 4: Simplify right side
    129,547.50x = 10,614,629,355.75
  5. Step 5: Solve for x
    x = 10,614,629,355.75/129,547.50
  6. Step 6: Final answer
    x = 81,936.20

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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.