Home / 113,737.12-156,907.32-68,388.88

Finding the Fourth Proportional to 113,737.12, 156,907.32 and 68,388.88

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Solution

The fourth proportional to 113,737.12, 156,907.32 and 68,388.88 is: 94,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,737.12 : 156,907.32 = 68,388.88 : x
  2. Step 2: Convert to fraction form
    113,737.12/156,907.32 = 68,388.88/x
  3. Step 3: Cross multiply
    113,737.12x = 156,907.32 × 68,388.88
  4. Step 4: Simplify right side
    113,737.12x = 10,730,715,878.60
  5. Step 5: Solve for x
    x = 10,730,715,878.60/113,737.12
  6. Step 6: Final answer
    x = 94,346.65

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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.