Home / 136,577.16-188,478.14-79,229.76

Finding the Fourth Proportional to 136,577.16, 188,478.14 and 79,229.76

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Solution

The fourth proportional to 136,577.16, 188,478.14 and 79,229.76 is: 109,338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,577.16 : 188,478.14 = 79,229.76 : x
  2. Step 2: Convert to fraction form
    136,577.16/188,478.14 = 79,229.76/x
  3. Step 3: Cross multiply
    136,577.16x = 188,478.14 × 79,229.76
  4. Step 4: Simplify right side
    136,577.16x = 14,933,077,797.45
  5. Step 5: Solve for x
    x = 14,933,077,797.45/136,577.16
  6. Step 6: Final answer
    x = 109,338.03

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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.