Home / 131,723.24-181,778.10-72,107.24

Finding the Fourth Proportional to 131,723.24, 181,778.10 and 72,107.24

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Solution

The fourth proportional to 131,723.24, 181,778.10 and 72,107.24 is: 99,508.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,723.24 : 181,778.10 = 72,107.24 : x
  2. Step 2: Convert to fraction form
    131,723.24/181,778.10 = 72,107.24/x
  3. Step 3: Cross multiply
    131,723.24x = 181,778.10 × 72,107.24
  4. Step 4: Simplify right side
    131,723.24x = 13,107,517,083.44
  5. Step 5: Solve for x
    x = 13,107,517,083.44/131,723.24
  6. Step 6: Final answer
    x = 99,508.01

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1.5x scale

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.