Home / 136,566.78-188,446.95-82,864.86

Finding the Fourth Proportional to 136,566.78, 188,446.95 and 82,864.86

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Solution

The fourth proportional to 136,566.78, 188,446.95 and 82,864.86 is: 114,344.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,566.78 : 188,446.95 = 82,864.86 : x
  2. Step 2: Convert to fraction form
    136,566.78/188,446.95 = 82,864.86/x
  3. Step 3: Cross multiply
    136,566.78x = 188,446.95 × 82,864.86
  4. Step 4: Simplify right side
    136,566.78x = 15,615,630,129.18
  5. Step 5: Solve for x
    x = 15,615,630,129.18/136,566.78
  6. Step 6: Final answer
    x = 114,344.28

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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.