Home / 148,730.24-205,248-80,747.20

Finding the Fourth Proportional to 148,730.24, 205,248 and 80,747.20

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Solution

The fourth proportional to 148,730.24, 205,248 and 80,747.20 is: 111,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,730.24 : 205,248 = 80,747.20 : x
  2. Step 2: Convert to fraction form
    148,730.24/205,248 = 80,747.20/x
  3. Step 3: Cross multiply
    148,730.24x = 205,248 × 80,747.20
  4. Step 4: Simplify right side
    148,730.24x = 16,573,201,305.60
  5. Step 5: Solve for x
    x = 16,573,201,305.60/148,730.24
  6. Step 6: Final answer
    x = 111,431.28

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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.