Home / 136,656.27-188,585.94-76,225.36

Finding the Fourth Proportional to 136,656.27, 188,585.94 and 76,225.36

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Solution

The fourth proportional to 136,656.27, 188,585.94 and 76,225.36 is: 105,191.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,656.27 : 188,585.94 = 76,225.36 : x
  2. Step 2: Convert to fraction form
    136,656.27/188,585.94 = 76,225.36/x
  3. Step 3: Cross multiply
    136,656.27x = 188,585.94 × 76,225.36
  4. Step 4: Simplify right side
    136,656.27x = 14,375,031,167.44
  5. Step 5: Solve for x
    x = 14,375,031,167.44/136,656.27
  6. Step 6: Final answer
    x = 105,191.16

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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.