Home / 172,317.12-258,541.56-67,209.36

Finding the Fourth Proportional to 172,317.12, 258,541.56 and 67,209.36

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Solution

The fourth proportional to 172,317.12, 258,541.56 and 67,209.36 is: 100,839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,317.12 : 258,541.56 = 67,209.36 : x
  2. Step 2: Convert to fraction form
    172,317.12/258,541.56 = 67,209.36/x
  3. Step 3: Cross multiply
    172,317.12x = 258,541.56 × 67,209.36
  4. Step 4: Simplify right side
    172,317.12x = 17,376,412,781.00
  5. Step 5: Solve for x
    x = 17,376,412,781.00/172,317.12
  6. Step 6: Final answer
    x = 100,839.74

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1.5x scale

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.