Home / 136,402.68-188,244.30-76,790.52

Finding the Fourth Proportional to 136,402.68, 188,244.30 and 76,790.52

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Solution

The fourth proportional to 136,402.68, 188,244.30 and 76,790.52 is: 105,975.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,402.68 : 188,244.30 = 76,790.52 : x
  2. Step 2: Convert to fraction form
    136,402.68/188,244.30 = 76,790.52/x
  3. Step 3: Cross multiply
    136,402.68x = 188,244.30 × 76,790.52
  4. Step 4: Simplify right side
    136,402.68x = 14,455,377,684.04
  5. Step 5: Solve for x
    x = 14,455,377,684.04/136,402.68
  6. Step 6: Final answer
    x = 105,975.76

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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.