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Finding the Fourth Proportional to 128,060.95, 192,079.90 and 44,949.91

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Solution

The fourth proportional to 128,060.95, 192,079.90 and 44,949.91 is: 67,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,060.95 : 192,079.90 = 44,949.91 : x
  2. Step 2: Convert to fraction form
    128,060.95/192,079.90 = 44,949.91/x
  3. Step 3: Cross multiply
    128,060.95x = 192,079.90 × 44,949.91
  4. Step 4: Simplify right side
    128,060.95x = 8,633,974,217.81
  5. Step 5: Solve for x
    x = 8,633,974,217.81/128,060.95
  6. Step 6: Final answer
    x = 67,420.82

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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.