Home / 79,134.16-118,617.06-54,167.20

Finding the Fourth Proportional to 79,134.16, 118,617.06 and 54,167.20

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Solution

The fourth proportional to 79,134.16, 118,617.06 and 54,167.20 is: 81,193.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,134.16 : 118,617.06 = 54,167.20 : x
  2. Step 2: Convert to fraction form
    79,134.16/118,617.06 = 54,167.20/x
  3. Step 3: Cross multiply
    79,134.16x = 118,617.06 × 54,167.20
  4. Step 4: Simplify right side
    79,134.16x = 6,425,154,012.43
  5. Step 5: Solve for x
    x = 6,425,154,012.43/79,134.16
  6. Step 6: Final answer
    x = 81,193.18

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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.