Home / 131,402.13-181,334.96-71,786.13

Finding the Fourth Proportional to 131,402.13, 181,334.96 and 71,786.13

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Solution

The fourth proportional to 131,402.13, 181,334.96 and 71,786.13 is: 99,064.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,402.13 : 181,334.96 = 71,786.13 : x
  2. Step 2: Convert to fraction form
    131,402.13/181,334.96 = 71,786.13/x
  3. Step 3: Cross multiply
    131,402.13x = 181,334.96 × 71,786.13
  4. Step 4: Simplify right side
    131,402.13x = 13,017,335,012.10
  5. Step 5: Solve for x
    x = 13,017,335,012.10/131,402.13
  6. Step 6: Final answer
    x = 99,064.87

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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.