Home / 115,248-159,042.88-64,947.84

Finding the Fourth Proportional to 115,248, 159,042.88 and 64,947.84

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Solution

The fourth proportional to 115,248, 159,042.88 and 64,947.84 is: 89,628.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,248 : 159,042.88 = 64,947.84 : x
  2. Step 2: Convert to fraction form
    115,248/159,042.88 = 64,947.84/x
  3. Step 3: Cross multiply
    115,248x = 159,042.88 × 64,947.84
  4. Step 4: Simplify right side
    115,248x = 10,329,491,523.38
  5. Step 5: Solve for x
    x = 10,329,491,523.38/115,248
  6. Step 6: Final answer
    x = 89,628.38

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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.