Home / 148,346.88-204,717.12-81,278.72

Finding the Fourth Proportional to 148,346.88, 204,717.12 and 81,278.72

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Solution

The fourth proportional to 148,346.88, 204,717.12 and 81,278.72 is: 112,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,346.88 : 204,717.12 = 81,278.72 : x
  2. Step 2: Convert to fraction form
    148,346.88/204,717.12 = 81,278.72/x
  3. Step 3: Cross multiply
    148,346.88x = 204,717.12 × 81,278.72
  4. Step 4: Simplify right side
    148,346.88x = 16,639,145,475.69
  5. Step 5: Solve for x
    x = 16,639,145,475.69/148,346.88
  6. Step 6: Final answer
    x = 112,163.77

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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.