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Finding the Fourth Proportional to 101,810.96, 140,581.67 and 63,615

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Solution

The fourth proportional to 101,810.96, 140,581.67 and 63,615 is: 87,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,810.96 : 140,581.67 = 63,615 : x
  2. Step 2: Convert to fraction form
    101,810.96/140,581.67 = 63,615/x
  3. Step 3: Cross multiply
    101,810.96x = 140,581.67 × 63,615
  4. Step 4: Simplify right side
    101,810.96x = 8,943,102,618.98
  5. Step 5: Solve for x
    x = 8,943,102,618.98/101,810.96
  6. Step 6: Final answer
    x = 87,840.28

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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.