Home / 158,006.24-218,053.80-86,388.20

Finding the Fourth Proportional to 158,006.24, 218,053.80 and 86,388.20

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Solution

The fourth proportional to 158,006.24, 218,053.80 and 86,388.20 is: 119,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,006.24 : 218,053.80 = 86,388.20 : x
  2. Step 2: Convert to fraction form
    158,006.24/218,053.80 = 86,388.20/x
  3. Step 3: Cross multiply
    158,006.24x = 218,053.80 × 86,388.20
  4. Step 4: Simplify right side
    158,006.24x = 18,837,275,285.16
  5. Step 5: Solve for x
    x = 18,837,275,285.16/158,006.24
  6. Step 6: Final answer
    x = 119,218.55

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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.