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Finding the Fourth Proportional to 148,082.80, 221,869.05 and 69,034.90

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Solution

The fourth proportional to 148,082.80, 221,869.05 and 69,034.90 is: 103,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,082.80 : 221,869.05 = 69,034.90 : x
  2. Step 2: Convert to fraction form
    148,082.80/221,869.05 = 69,034.90/x
  3. Step 3: Cross multiply
    148,082.80x = 221,869.05 × 69,034.90
  4. Step 4: Simplify right side
    148,082.80x = 15,316,707,679.85
  5. Step 5: Solve for x
    x = 15,316,707,679.85/148,082.80
  6. Step 6: Final answer
    x = 103,433.40

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1.5x scale

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.