Home / 113,618.20-156,804.84-68,311

Finding the Fourth Proportional to 113,618.20, 156,804.84 and 68,311

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Solution

The fourth proportional to 113,618.20, 156,804.84 and 68,311 is: 94,276.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,618.20 : 156,804.84 = 68,311 : x
  2. Step 2: Convert to fraction form
    113,618.20/156,804.84 = 68,311/x
  3. Step 3: Cross multiply
    113,618.20x = 156,804.84 × 68,311
  4. Step 4: Simplify right side
    113,618.20x = 10,711,495,425.24
  5. Step 5: Solve for x
    x = 10,711,495,425.24/113,618.20
  6. Step 6: Final answer
    x = 94,276.23

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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.