Home / 113,765.81-156,996.69-62,778.53

Finding the Fourth Proportional to 113,765.81, 156,996.69 and 62,778.53

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Solution

The fourth proportional to 113,765.81, 156,996.69 and 62,778.53 is: 86,634.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,765.81 : 156,996.69 = 62,778.53 : x
  2. Step 2: Convert to fraction form
    113,765.81/156,996.69 = 62,778.53/x
  3. Step 3: Cross multiply
    113,765.81x = 156,996.69 × 62,778.53
  4. Step 4: Simplify right side
    113,765.81x = 9,856,020,628.08
  5. Step 5: Solve for x
    x = 9,856,020,628.08/113,765.81
  6. Step 6: Final answer
    x = 86,634.30

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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.