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Finding the Fourth Proportional to 148,302.70, 222,601.70 and 81,774.16

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Solution

The fourth proportional to 148,302.70, 222,601.70 and 81,774.16 is: 122,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,302.70 : 222,601.70 = 81,774.16 : x
  2. Step 2: Convert to fraction form
    148,302.70/222,601.70 = 81,774.16/x
  3. Step 3: Cross multiply
    148,302.70x = 222,601.70 × 81,774.16
  4. Step 4: Simplify right side
    148,302.70x = 18,203,067,032.07
  5. Step 5: Solve for x
    x = 18,203,067,032.07/148,302.70
  6. Step 6: Final answer
    x = 122,742.65

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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.