Home / 136,176.90-187,872.57-84,470.07

Finding the Fourth Proportional to 136,176.90, 187,872.57 and 84,470.07

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Solution

The fourth proportional to 136,176.90, 187,872.57 and 84,470.07 is: 116,536.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,176.90 : 187,872.57 = 84,470.07 : x
  2. Step 2: Convert to fraction form
    136,176.90/187,872.57 = 84,470.07/x
  3. Step 3: Cross multiply
    136,176.90x = 187,872.57 × 84,470.07
  4. Step 4: Simplify right side
    136,176.90x = 15,869,609,138.98
  5. Step 5: Solve for x
    x = 15,869,609,138.98/136,176.90
  6. Step 6: Final answer
    x = 116,536.72

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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.