Home / 148,854.16-205,420.98-80,872.48

Finding the Fourth Proportional to 148,854.16, 205,420.98 and 80,872.48

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Solution

The fourth proportional to 148,854.16, 205,420.98 and 80,872.48 is: 111,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,854.16 : 205,420.98 = 80,872.48 : x
  2. Step 2: Convert to fraction form
    148,854.16/205,420.98 = 80,872.48/x
  3. Step 3: Cross multiply
    148,854.16x = 205,420.98 × 80,872.48
  4. Step 4: Simplify right side
    148,854.16x = 16,612,904,096.63
  5. Step 5: Solve for x
    x = 16,612,904,096.63/148,854.16
  6. Step 6: Final answer
    x = 111,605.24

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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.