Home / 128,521.53-192,751.24-49,585.41

Finding the Fourth Proportional to 128,521.53, 192,751.24 and 49,585.41

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Solution

The fourth proportional to 128,521.53, 192,751.24 and 49,585.41 is: 74,366.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,521.53 : 192,751.24 = 49,585.41 : x
  2. Step 2: Convert to fraction form
    128,521.53/192,751.24 = 49,585.41/x
  3. Step 3: Cross multiply
    128,521.53x = 192,751.24 × 49,585.41
  4. Step 4: Simplify right side
    128,521.53x = 9,557,649,263.41
  5. Step 5: Solve for x
    x = 9,557,649,263.41/128,521.53
  6. Step 6: Final answer
    x = 74,366.13

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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.