Home / 128,294.28-192,465.72-58,179.06

Finding the Fourth Proportional to 128,294.28, 192,465.72 and 58,179.06

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Solution

The fourth proportional to 128,294.28, 192,465.72 and 58,179.06 is: 87,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,294.28 : 192,465.72 = 58,179.06 : x
  2. Step 2: Convert to fraction form
    128,294.28/192,465.72 = 58,179.06/x
  3. Step 3: Cross multiply
    128,294.28x = 192,465.72 × 58,179.06
  4. Step 4: Simplify right side
    128,294.28x = 11,197,474,671.82
  5. Step 5: Solve for x
    x = 11,197,474,671.82/128,294.28
  6. Step 6: Final answer
    x = 87,279.61

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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.