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Finding the Fourth Proportional to 158,745, 219,068.10 and 88,089

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Solution

The fourth proportional to 158,745, 219,068.10 and 88,089 is: 121,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,745 : 219,068.10 = 88,089 : x
  2. Step 2: Convert to fraction form
    158,745/219,068.10 = 88,089/x
  3. Step 3: Cross multiply
    158,745x = 219,068.10 × 88,089
  4. Step 4: Simplify right side
    158,745x = 19,297,489,860.90
  5. Step 5: Solve for x
    x = 19,297,489,860.90/158,745
  6. Step 6: Final answer
    x = 121,562.82

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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.