Home / 172,549.48-258,867.20-137,144.40

Finding the Fourth Proportional to 172,549.48, 258,867.20 and 137,144.40

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Solution

The fourth proportional to 172,549.48, 258,867.20 and 137,144.40 is: 205,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,549.48 : 258,867.20 = 137,144.40 : x
  2. Step 2: Convert to fraction form
    172,549.48/258,867.20 = 137,144.40/x
  3. Step 3: Cross multiply
    172,549.48x = 258,867.20 × 137,144.40
  4. Step 4: Simplify right side
    172,549.48x = 35,502,186,823.68
  5. Step 5: Solve for x
    x = 35,502,186,823.68/172,549.48
  6. Step 6: Final answer
    x = 205,750.76

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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.