Home / 127,651.10-176,043.84-79,908.80

Finding the Fourth Proportional to 127,651.10, 176,043.84 and 79,908.80

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Solution

The fourth proportional to 127,651.10, 176,043.84 and 79,908.80 is: 110,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,651.10 : 176,043.84 = 79,908.80 : x
  2. Step 2: Convert to fraction form
    127,651.10/176,043.84 = 79,908.80/x
  3. Step 3: Cross multiply
    127,651.10x = 176,043.84 × 79,908.80
  4. Step 4: Simplify right side
    127,651.10x = 14,067,452,001.79
  5. Step 5: Solve for x
    x = 14,067,452,001.79/127,651.10
  6. Step 6: Final answer
    x = 110,202.36

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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.