Home / 158,566.76-218,822.20-86,945.30

Finding the Fourth Proportional to 158,566.76, 218,822.20 and 86,945.30

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Solution

The fourth proportional to 158,566.76, 218,822.20 and 86,945.30 is: 119,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,566.76 : 218,822.20 = 86,945.30 : x
  2. Step 2: Convert to fraction form
    158,566.76/218,822.20 = 86,945.30/x
  3. Step 3: Cross multiply
    158,566.76x = 218,822.20 × 86,945.30
  4. Step 4: Simplify right side
    158,566.76x = 19,025,561,825.66
  5. Step 5: Solve for x
    x = 19,025,561,825.66/158,566.76
  6. Step 6: Final answer
    x = 119,984.55

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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.