Home / 148,446.75-204,856.52-81,378.75

Finding the Fourth Proportional to 148,446.75, 204,856.52 and 81,378.75

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Solution

The fourth proportional to 148,446.75, 204,856.52 and 81,378.75 is: 112,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,446.75 : 204,856.52 = 81,378.75 : x
  2. Step 2: Convert to fraction form
    148,446.75/204,856.52 = 81,378.75/x
  3. Step 3: Cross multiply
    148,446.75x = 204,856.52 × 81,378.75
  4. Step 4: Simplify right side
    148,446.75x = 16,670,967,120.06
  5. Step 5: Solve for x
    x = 16,670,967,120.06/148,446.75
  6. Step 6: Final answer
    x = 112,302.68

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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.