Home / 148,921.98-223,328.90-81,503.85

Finding the Fourth Proportional to 148,921.98, 223,328.90 and 81,503.85

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Solution

The fourth proportional to 148,921.98, 223,328.90 and 81,503.85 is: 122,226.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,921.98 : 223,328.90 = 81,503.85 : x
  2. Step 2: Convert to fraction form
    148,921.98/223,328.90 = 81,503.85/x
  3. Step 3: Cross multiply
    148,921.98x = 223,328.90 × 81,503.85
  4. Step 4: Simplify right side
    148,921.98x = 18,202,164,758.75
  5. Step 5: Solve for x
    x = 18,202,164,758.75/148,921.98
  6. Step 6: Final answer
    x = 122,226.18

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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.