Home / 113,554.35-156,708.55-65,165.13

Finding the Fourth Proportional to 113,554.35, 156,708.55 and 65,165.13

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Solution

The fourth proportional to 113,554.35, 156,708.55 and 65,165.13 is: 89,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,554.35 : 156,708.55 = 65,165.13 : x
  2. Step 2: Convert to fraction form
    113,554.35/156,708.55 = 65,165.13/x
  3. Step 3: Cross multiply
    113,554.35x = 156,708.55 × 65,165.13
  4. Step 4: Simplify right side
    113,554.35x = 10,211,932,673.58
  5. Step 5: Solve for x
    x = 10,211,932,673.58/113,554.35
  6. Step 6: Final answer
    x = 89,929.91

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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.