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Finding the Fourth Proportional to 102,555.40, 153,833.10 and 43,375.72

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Solution

The fourth proportional to 102,555.40, 153,833.10 and 43,375.72 is: 65,063.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,555.40 : 153,833.10 = 43,375.72 : x
  2. Step 2: Convert to fraction form
    102,555.40/153,833.10 = 43,375.72/x
  3. Step 3: Cross multiply
    102,555.40x = 153,833.10 × 43,375.72
  4. Step 4: Simplify right side
    102,555.40x = 6,672,621,472.33
  5. Step 5: Solve for x
    x = 6,672,621,472.33/102,555.40
  6. Step 6: Final answer
    x = 65,063.58

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Similar ratio
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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.