Home / 148,027.79-221,844.84-128,213.57

Finding the Fourth Proportional to 148,027.79, 221,844.84 and 128,213.57

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Solution

The fourth proportional to 148,027.79, 221,844.84 and 128,213.57 is: 192,149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,027.79 : 221,844.84 = 128,213.57 : x
  2. Step 2: Convert to fraction form
    148,027.79/221,844.84 = 128,213.57/x
  3. Step 3: Cross multiply
    148,027.79x = 221,844.84 × 128,213.57
  4. Step 4: Simplify right side
    148,027.79x = 28,443,517,813.25
  5. Step 5: Solve for x
    x = 28,443,517,813.25/148,027.79
  6. Step 6: Final answer
    x = 192,149.86

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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.