Home / 113,765.40-156,996.71-62,779.62

Finding the Fourth Proportional to 113,765.40, 156,996.71 and 62,779.62

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Solution

The fourth proportional to 113,765.40, 156,996.71 and 62,779.62 is: 86,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,765.40 : 156,996.71 = 62,779.62 : x
  2. Step 2: Convert to fraction form
    113,765.40/156,996.71 = 62,779.62/x
  3. Step 3: Cross multiply
    113,765.40x = 156,996.71 × 62,779.62
  4. Step 4: Simplify right side
    113,765.40x = 9,856,193,795.05
  5. Step 5: Solve for x
    x = 9,856,193,795.05/113,765.40
  6. Step 6: Final answer
    x = 86,636.13

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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.