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Finding the Fourth Proportional to 148,373, 204,754.47 and 80,391.70

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Solution

The fourth proportional to 148,373, 204,754.47 and 80,391.70 is: 110,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,373 : 204,754.47 = 80,391.70 : x
  2. Step 2: Convert to fraction form
    148,373/204,754.47 = 80,391.70/x
  3. Step 3: Cross multiply
    148,373x = 204,754.47 × 80,391.70
  4. Step 4: Simplify right side
    148,373x = 16,460,559,925.90
  5. Step 5: Solve for x
    x = 16,460,559,925.90/148,373
  6. Step 6: Final answer
    x = 110,940.40

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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.