Home / 125,177.03-172,743.16-67,815.03

Finding the Fourth Proportional to 125,177.03, 172,743.16 and 67,815.03

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Solution

The fourth proportional to 125,177.03, 172,743.16 and 67,815.03 is: 93,584.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,177.03 : 172,743.16 = 67,815.03 : x
  2. Step 2: Convert to fraction form
    125,177.03/172,743.16 = 67,815.03/x
  3. Step 3: Cross multiply
    125,177.03x = 172,743.16 × 67,815.03
  4. Step 4: Simplify right side
    125,177.03x = 11,714,582,577.69
  5. Step 5: Solve for x
    x = 11,714,582,577.69/125,177.03
  6. Step 6: Final answer
    x = 93,584.12

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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.