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Finding the Fourth Proportional to 158,713.38, 238,071 and 63,987.12

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Solution

The fourth proportional to 158,713.38, 238,071 and 63,987.12 is: 95,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,713.38 : 238,071 = 63,987.12 : x
  2. Step 2: Convert to fraction form
    158,713.38/238,071 = 63,987.12/x
  3. Step 3: Cross multiply
    158,713.38x = 238,071 × 63,987.12
  4. Step 4: Simplify right side
    158,713.38x = 15,233,477,645.52
  5. Step 5: Solve for x
    x = 15,233,477,645.52/158,713.38
  6. Step 6: Final answer
    x = 95,981.05

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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.