Home / 153,721.38-230,573.76-47,105.64

Finding the Fourth Proportional to 153,721.38, 230,573.76 and 47,105.64

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Solution

The fourth proportional to 153,721.38, 230,573.76 and 47,105.64 is: 70,655.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,721.38 : 230,573.76 = 47,105.64 : x
  2. Step 2: Convert to fraction form
    153,721.38/230,573.76 = 47,105.64/x
  3. Step 3: Cross multiply
    153,721.38x = 230,573.76 × 47,105.64
  4. Step 4: Simplify right side
    153,721.38x = 10,861,324,532.01
  5. Step 5: Solve for x
    x = 10,861,324,532.01/153,721.38
  6. Step 6: Final answer
    x = 70,655.91

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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.