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Finding the Fourth Proportional to 148,678.83, 205,109.78 and 88,252.02

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Solution

The fourth proportional to 148,678.83, 205,109.78 and 88,252.02 is: 121,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,678.83 : 205,109.78 = 88,252.02 : x
  2. Step 2: Convert to fraction form
    148,678.83/205,109.78 = 88,252.02/x
  3. Step 3: Cross multiply
    148,678.83x = 205,109.78 × 88,252.02
  4. Step 4: Simplify right side
    148,678.83x = 18,101,351,965.50
  5. Step 5: Solve for x
    x = 18,101,351,965.50/148,678.83
  6. Step 6: Final answer
    x = 121,748.01

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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.