Home / 113,125.20-169,461.52-68,121.60

Finding the Fourth Proportional to 113,125.20, 169,461.52 and 68,121.60

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Solution

The fourth proportional to 113,125.20, 169,461.52 and 68,121.60 is: 102,046.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,125.20 : 169,461.52 = 68,121.60 : x
  2. Step 2: Convert to fraction form
    113,125.20/169,461.52 = 68,121.60/x
  3. Step 3: Cross multiply
    113,125.20x = 169,461.52 × 68,121.60
  4. Step 4: Simplify right side
    113,125.20x = 11,543,989,880.83
  5. Step 5: Solve for x
    x = 11,543,989,880.83/113,125.20
  6. Step 6: Final answer
    x = 102,046.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.