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Finding the Fourth Proportional to 158,899.84, 238,346.08 and 79,992.88

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Solution

The fourth proportional to 158,899.84, 238,346.08 and 79,992.88 is: 119,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,899.84 : 238,346.08 = 79,992.88 : x
  2. Step 2: Convert to fraction form
    158,899.84/238,346.08 = 79,992.88/x
  3. Step 3: Cross multiply
    158,899.84x = 238,346.08 × 79,992.88
  4. Step 4: Simplify right side
    158,899.84x = 19,065,989,375.91
  5. Step 5: Solve for x
    x = 19,065,989,375.91/158,899.84
  6. Step 6: Final answer
    x = 119,987.47

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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.