Home / 136,482.72-188,344.20-76,055.90

Finding the Fourth Proportional to 136,482.72, 188,344.20 and 76,055.90

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Solution

The fourth proportional to 136,482.72, 188,344.20 and 76,055.90 is: 104,956.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,482.72 : 188,344.20 = 76,055.90 : x
  2. Step 2: Convert to fraction form
    136,482.72/188,344.20 = 76,055.90/x
  3. Step 3: Cross multiply
    136,482.72x = 188,344.20 × 76,055.90
  4. Step 4: Simplify right side
    136,482.72x = 14,324,687,640.78
  5. Step 5: Solve for x
    x = 14,324,687,640.78/136,482.72
  6. Step 6: Final answer
    x = 104,956.05

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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.