Home / 103,313.90-154,711.65-68,062.70

Finding the Fourth Proportional to 103,313.90, 154,711.65 and 68,062.70

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Solution

The fourth proportional to 103,313.90, 154,711.65 and 68,062.70 is: 101,923.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,313.90 : 154,711.65 = 68,062.70 : x
  2. Step 2: Convert to fraction form
    103,313.90/154,711.65 = 68,062.70/x
  3. Step 3: Cross multiply
    103,313.90x = 154,711.65 × 68,062.70
  4. Step 4: Simplify right side
    103,313.90x = 10,530,092,620.46
  5. Step 5: Solve for x
    x = 10,530,092,620.46/103,313.90
  6. Step 6: Final answer
    x = 101,923.29

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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.