Home / 128,546.08-192,671.28-49,625.76

Finding the Fourth Proportional to 128,546.08, 192,671.28 and 49,625.76

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Solution

The fourth proportional to 128,546.08, 192,671.28 and 49,625.76 is: 74,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,546.08 : 192,671.28 = 49,625.76 : x
  2. Step 2: Convert to fraction form
    128,546.08/192,671.28 = 49,625.76/x
  3. Step 3: Cross multiply
    128,546.08x = 192,671.28 × 49,625.76
  4. Step 4: Simplify right side
    128,546.08x = 9,561,458,700.17
  5. Step 5: Solve for x
    x = 9,561,458,700.17/128,546.08
  6. Step 6: Final answer
    x = 74,381.57

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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.