Home / 113,352.20-156,445.62-65,631.86

Finding the Fourth Proportional to 113,352.20, 156,445.62 and 65,631.86

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Solution

The fourth proportional to 113,352.20, 156,445.62 and 65,631.86 is: 90,583.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,352.20 : 156,445.62 = 65,631.86 : x
  2. Step 2: Convert to fraction form
    113,352.20/156,445.62 = 65,631.86/x
  3. Step 3: Cross multiply
    113,352.20x = 156,445.62 × 65,631.86
  4. Step 4: Simplify right side
    113,352.20x = 10,267,817,029.45
  5. Step 5: Solve for x
    x = 10,267,817,029.45/113,352.20
  6. Step 6: Final answer
    x = 90,583.31

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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.