Home / 124,817.28-172,310.40-84,743.04

Finding the Fourth Proportional to 124,817.28, 172,310.40 and 84,743.04

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Solution

The fourth proportional to 124,817.28, 172,310.40 and 84,743.04 is: 116,987.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,817.28 : 172,310.40 = 84,743.04 : x
  2. Step 2: Convert to fraction form
    124,817.28/172,310.40 = 84,743.04/x
  3. Step 3: Cross multiply
    124,817.28x = 172,310.40 × 84,743.04
  4. Step 4: Simplify right side
    124,817.28x = 14,602,107,119.62
  5. Step 5: Solve for x
    x = 14,602,107,119.62/124,817.28
  6. Step 6: Final answer
    x = 116,987.87

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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.