Home / 148,129.91-204,417.82-80,145.39

Finding the Fourth Proportional to 148,129.91, 204,417.82 and 80,145.39

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Solution

The fourth proportional to 148,129.91, 204,417.82 and 80,145.39 is: 110,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,129.91 : 204,417.82 = 80,145.39 : x
  2. Step 2: Convert to fraction form
    148,129.91/204,417.82 = 80,145.39/x
  3. Step 3: Cross multiply
    148,129.91x = 204,417.82 × 80,145.39
  4. Step 4: Simplify right side
    148,129.91x = 16,383,146,376.91
  5. Step 5: Solve for x
    x = 16,383,146,376.91/148,129.91
  6. Step 6: Final answer
    x = 110,599.85

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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.