Home / 128,317-192,347.52-61,738.24

Finding the Fourth Proportional to 128,317, 192,347.52 and 61,738.24

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Solution

The fourth proportional to 128,317, 192,347.52 and 61,738.24 is: 92,545.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317 : 192,347.52 = 61,738.24 : x
  2. Step 2: Convert to fraction form
    128,317/192,347.52 = 61,738.24/x
  3. Step 3: Cross multiply
    128,317x = 192,347.52 × 61,738.24
  4. Step 4: Simplify right side
    128,317x = 11,875,197,353.16
  5. Step 5: Solve for x
    x = 11,875,197,353.16/128,317
  6. Step 6: Final answer
    x = 92,545.78

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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.