Home / 131,717.01-181,789.94-86,525.90

Finding the Fourth Proportional to 131,717.01, 181,789.94 and 86,525.90

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Solution

The fourth proportional to 131,717.01, 181,789.94 and 86,525.90 is: 119,419.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,717.01 : 181,789.94 = 86,525.90 : x
  2. Step 2: Convert to fraction form
    131,717.01/181,789.94 = 86,525.90/x
  3. Step 3: Cross multiply
    131,717.01x = 181,789.94 × 86,525.90
  4. Step 4: Simplify right side
    131,717.01x = 15,729,537,476.81
  5. Step 5: Solve for x
    x = 15,729,537,476.81/131,717.01
  6. Step 6: Final answer
    x = 119,419.18

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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.