Home / 187,251.45-280,947.89-112,423.76

Finding the Fourth Proportional to 187,251.45, 280,947.89 and 112,423.76

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Solution

The fourth proportional to 187,251.45, 280,947.89 and 112,423.76 is: 168,678.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,251.45 : 280,947.89 = 112,423.76 : x
  2. Step 2: Convert to fraction form
    187,251.45/280,947.89 = 112,423.76/x
  3. Step 3: Cross multiply
    187,251.45x = 280,947.89 × 112,423.76
  4. Step 4: Simplify right side
    187,251.45x = 31,585,217,771.39
  5. Step 5: Solve for x
    x = 31,585,217,771.39/187,251.45
  6. Step 6: Final answer
    x = 168,678.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.