Home / 89,744.90-134,617.35-68,749.70

Finding the Fourth Proportional to 89,744.90, 134,617.35 and 68,749.70

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Solution

The fourth proportional to 89,744.90, 134,617.35 and 68,749.70 is: 103,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,744.90 : 134,617.35 = 68,749.70 : x
  2. Step 2: Convert to fraction form
    89,744.90/134,617.35 = 68,749.70/x
  3. Step 3: Cross multiply
    89,744.90x = 134,617.35 × 68,749.70
  4. Step 4: Simplify right side
    89,744.90x = 9,254,902,427.30
  5. Step 5: Solve for x
    x = 9,254,902,427.30/89,744.90
  6. Step 6: Final answer
    x = 103,124.55

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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.