Home / 136,340.28-188,147.34-79,761.24

Finding the Fourth Proportional to 136,340.28, 188,147.34 and 79,761.24

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Solution

The fourth proportional to 136,340.28, 188,147.34 and 79,761.24 is: 110,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,340.28 : 188,147.34 = 79,761.24 : x
  2. Step 2: Convert to fraction form
    136,340.28/188,147.34 = 79,761.24/x
  3. Step 3: Cross multiply
    136,340.28x = 188,147.34 × 79,761.24
  4. Step 4: Simplify right side
    136,340.28x = 15,006,865,141.10
  5. Step 5: Solve for x
    x = 15,006,865,141.10/136,340.28
  6. Step 6: Final answer
    x = 110,069.20

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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.