Home / 136,656.62-188,587.17-76,231.22

Finding the Fourth Proportional to 136,656.62, 188,587.17 and 76,231.22

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Solution

The fourth proportional to 136,656.62, 188,587.17 and 76,231.22 is: 105,199.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,656.62 : 188,587.17 = 76,231.22 : x
  2. Step 2: Convert to fraction form
    136,656.62/188,587.17 = 76,231.22/x
  3. Step 3: Cross multiply
    136,656.62x = 188,587.17 × 76,231.22
  4. Step 4: Simplify right side
    136,656.62x = 14,376,230,045.45
  5. Step 5: Solve for x
    x = 14,376,230,045.45/136,656.62
  6. Step 6: Final answer
    x = 105,199.66

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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.