Home / 99,178.20-136,865.76-54,466.20

Finding the Fourth Proportional to 99,178.20, 136,865.76 and 54,466.20

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Solution

The fourth proportional to 99,178.20, 136,865.76 and 54,466.20 is: 75,163.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,178.20 : 136,865.76 = 54,466.20 : x
  2. Step 2: Convert to fraction form
    99,178.20/136,865.76 = 54,466.20/x
  3. Step 3: Cross multiply
    99,178.20x = 136,865.76 × 54,466.20
  4. Step 4: Simplify right side
    99,178.20x = 7,454,557,857.31
  5. Step 5: Solve for x
    x = 7,454,557,857.31/99,178.20
  6. Step 6: Final answer
    x = 75,163.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.