Home / 172,236.10-258,403.56-72,344.92

Finding the Fourth Proportional to 172,236.10, 258,403.56 and 72,344.92

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Solution

The fourth proportional to 172,236.10, 258,403.56 and 72,344.92 is: 108,538.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,236.10 : 258,403.56 = 72,344.92 : x
  2. Step 2: Convert to fraction form
    172,236.10/258,403.56 = 72,344.92/x
  3. Step 3: Cross multiply
    172,236.10x = 258,403.56 × 72,344.92
  4. Step 4: Simplify right side
    172,236.10x = 18,694,184,875.92
  5. Step 5: Solve for x
    x = 18,694,184,875.92/172,236.10
  6. Step 6: Final answer
    x = 108,538.13

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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.