Home / 144,342.28-199,184.30-79,807.78

Finding the Fourth Proportional to 144,342.28, 199,184.30 and 79,807.78

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Solution

The fourth proportional to 144,342.28, 199,184.30 and 79,807.78 is: 110,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,342.28 : 199,184.30 = 79,807.78 : x
  2. Step 2: Convert to fraction form
    144,342.28/199,184.30 = 79,807.78/x
  3. Step 3: Cross multiply
    144,342.28x = 199,184.30 × 79,807.78
  4. Step 4: Simplify right side
    144,342.28x = 15,896,456,793.85
  5. Step 5: Solve for x
    x = 15,896,456,793.85/144,342.28
  6. Step 6: Final answer
    x = 110,130.29

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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.