Home / 148,120.18-204,193.21-105,604.90

Finding the Fourth Proportional to 148,120.18, 204,193.21 and 105,604.90

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Solution

The fourth proportional to 148,120.18, 204,193.21 and 105,604.90 is: 145,583.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,120.18 : 204,193.21 = 105,604.90 : x
  2. Step 2: Convert to fraction form
    148,120.18/204,193.21 = 105,604.90/x
  3. Step 3: Cross multiply
    148,120.18x = 204,193.21 × 105,604.90
  4. Step 4: Simplify right side
    148,120.18x = 21,563,803,522.73
  5. Step 5: Solve for x
    x = 21,563,803,522.73/148,120.18
  6. Step 6: Final answer
    x = 145,583.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.