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Finding the Fourth Proportional to 101,573.58, 140,240.04 and 63,391.28

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Solution

The fourth proportional to 101,573.58, 140,240.04 and 63,391.28 is: 87,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,573.58 : 140,240.04 = 63,391.28 : x
  2. Step 2: Convert to fraction form
    101,573.58/140,240.04 = 63,391.28/x
  3. Step 3: Cross multiply
    101,573.58x = 140,240.04 × 63,391.28
  4. Step 4: Simplify right side
    101,573.58x = 8,889,995,642.85
  5. Step 5: Solve for x
    x = 8,889,995,642.85/101,573.58
  6. Step 6: Final answer
    x = 87,522.72

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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.