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Finding the Fourth Proportional to 147,374.48, 203,376.90 and 80,306.48

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Solution

The fourth proportional to 147,374.48, 203,376.90 and 80,306.48 is: 110,823.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,374.48 : 203,376.90 = 80,306.48 : x
  2. Step 2: Convert to fraction form
    147,374.48/203,376.90 = 80,306.48/x
  3. Step 3: Cross multiply
    147,374.48x = 203,376.90 × 80,306.48
  4. Step 4: Simplify right side
    147,374.48x = 16,332,482,952.31
  5. Step 5: Solve for x
    x = 16,332,482,952.31/147,374.48
  6. Step 6: Final answer
    x = 110,823.01

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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.