Home / 129,987.07-195,052.66-63,427.75

Finding the Fourth Proportional to 129,987.07, 195,052.66 and 63,427.75

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Solution

The fourth proportional to 129,987.07, 195,052.66 and 63,427.75 is: 95,176.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,987.07 : 195,052.66 = 63,427.75 : x
  2. Step 2: Convert to fraction form
    129,987.07/195,052.66 = 63,427.75/x
  3. Step 3: Cross multiply
    129,987.07x = 195,052.66 × 63,427.75
  4. Step 4: Simplify right side
    129,987.07x = 12,371,750,709.11
  5. Step 5: Solve for x
    x = 12,371,750,709.11/129,987.07
  6. Step 6: Final answer
    x = 95,176.78

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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.