Home / 99,101.75-148,604.18-69,130.35

Finding the Fourth Proportional to 99,101.75, 148,604.18 and 69,130.35

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Solution

The fourth proportional to 99,101.75, 148,604.18 and 69,130.35 is: 103,661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,101.75 : 148,604.18 = 69,130.35 : x
  2. Step 2: Convert to fraction form
    99,101.75/148,604.18 = 69,130.35/x
  3. Step 3: Cross multiply
    99,101.75x = 148,604.18 × 69,130.35
  4. Step 4: Simplify right side
    99,101.75x = 10,273,058,906.31
  5. Step 5: Solve for x
    x = 10,273,058,906.31/99,101.75
  6. Step 6: Final answer
    x = 103,661.73

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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.