Home / 158,540.55-218,787.75-90,566.52

Finding the Fourth Proportional to 158,540.55, 218,787.75 and 90,566.52

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Solution

The fourth proportional to 158,540.55, 218,787.75 and 90,566.52 is: 124,982.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,540.55 : 218,787.75 = 90,566.52 : x
  2. Step 2: Convert to fraction form
    158,540.55/218,787.75 = 90,566.52/x
  3. Step 3: Cross multiply
    158,540.55x = 218,787.75 × 90,566.52
  4. Step 4: Simplify right side
    158,540.55x = 19,814,845,136.13
  5. Step 5: Solve for x
    x = 19,814,845,136.13/158,540.55
  6. Step 6: Final answer
    x = 124,982.82

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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.