Home / 158,721.40-238,082.10-156,388.60

Finding the Fourth Proportional to 158,721.40, 238,082.10 and 156,388.60

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Solution

The fourth proportional to 158,721.40, 238,082.10 and 156,388.60 is: 234,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,721.40 : 238,082.10 = 156,388.60 : x
  2. Step 2: Convert to fraction form
    158,721.40/238,082.10 = 156,388.60/x
  3. Step 3: Cross multiply
    158,721.40x = 238,082.10 × 156,388.60
  4. Step 4: Simplify right side
    158,721.40x = 37,233,326,304.06
  5. Step 5: Solve for x
    x = 37,233,326,304.06/158,721.40
  6. Step 6: Final answer
    x = 234,582.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.