Home / 115,156.72-172,700.20-40,262.91

Finding the Fourth Proportional to 115,156.72, 172,700.20 and 40,262.91

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Solution

The fourth proportional to 115,156.72, 172,700.20 and 40,262.91 is: 60,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,156.72 : 172,700.20 = 40,262.91 : x
  2. Step 2: Convert to fraction form
    115,156.72/172,700.20 = 40,262.91/x
  3. Step 3: Cross multiply
    115,156.72x = 172,700.20 × 40,262.91
  4. Step 4: Simplify right side
    115,156.72x = 6,953,412,609.58
  5. Step 5: Solve for x
    x = 6,953,412,609.58/115,156.72
  6. Step 6: Final answer
    x = 60,382.17

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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.