Home / 148,126.72-222,190.08-81,532.57

Finding the Fourth Proportional to 148,126.72, 222,190.08 and 81,532.57

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Solution

The fourth proportional to 148,126.72, 222,190.08 and 81,532.57 is: 122,298.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,126.72 : 222,190.08 = 81,532.57 : x
  2. Step 2: Convert to fraction form
    148,126.72/222,190.08 = 81,532.57/x
  3. Step 3: Cross multiply
    148,126.72x = 222,190.08 × 81,532.57
  4. Step 4: Simplify right side
    148,126.72x = 18,115,728,250.91
  5. Step 5: Solve for x
    x = 18,115,728,250.91/148,126.72
  6. Step 6: Final answer
    x = 122,298.86

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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.