Home / 147,756.38-221,665.70-47,908.78

Finding the Fourth Proportional to 147,756.38, 221,665.70 and 47,908.78

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Solution

The fourth proportional to 147,756.38, 221,665.70 and 47,908.78 is: 71,873.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,756.38 : 221,665.70 = 47,908.78 : x
  2. Step 2: Convert to fraction form
    147,756.38/221,665.70 = 47,908.78/x
  3. Step 3: Cross multiply
    147,756.38x = 221,665.70 × 47,908.78
  4. Step 4: Simplify right side
    147,756.38x = 10,619,733,472.04
  5. Step 5: Solve for x
    x = 10,619,733,472.04/147,756.38
  6. Step 6: Final answer
    x = 71,873.27

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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.