Home / 158,126.40-218,207.52-86,507.82

Finding the Fourth Proportional to 158,126.40, 218,207.52 and 86,507.82

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Solution

The fourth proportional to 158,126.40, 218,207.52 and 86,507.82 is: 119,377.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,126.40 : 218,207.52 = 86,507.82 : x
  2. Step 2: Convert to fraction form
    158,126.40/218,207.52 = 86,507.82/x
  3. Step 3: Cross multiply
    158,126.40x = 218,207.52 × 86,507.82
  4. Step 4: Simplify right side
    158,126.40x = 18,876,656,862.81
  5. Step 5: Solve for x
    x = 18,876,656,862.81/158,126.40
  6. Step 6: Final answer
    x = 119,377.01

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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.