Home / 128,049.30-192,001.95-49,166.10

Finding the Fourth Proportional to 128,049.30, 192,001.95 and 49,166.10

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Solution

The fourth proportional to 128,049.30, 192,001.95 and 49,166.10 is: 73,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,049.30 : 192,001.95 = 49,166.10 : x
  2. Step 2: Convert to fraction form
    128,049.30/192,001.95 = 49,166.10/x
  3. Step 3: Cross multiply
    128,049.30x = 192,001.95 × 49,166.10
  4. Step 4: Simplify right side
    128,049.30x = 9,439,987,073.90
  5. Step 5: Solve for x
    x = 9,439,987,073.90/128,049.30
  6. Step 6: Final answer
    x = 73,721.50

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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.