Home / 103,976.19-143,491.50-58,655.88

Finding the Fourth Proportional to 103,976.19, 143,491.50 and 58,655.88

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Solution

The fourth proportional to 103,976.19, 143,491.50 and 58,655.88 is: 80,947.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,976.19 : 143,491.50 = 58,655.88 : x
  2. Step 2: Convert to fraction form
    103,976.19/143,491.50 = 58,655.88/x
  3. Step 3: Cross multiply
    103,976.19x = 143,491.50 × 58,655.88
  4. Step 4: Simplify right side
    103,976.19x = 8,416,620,205.02
  5. Step 5: Solve for x
    x = 8,416,620,205.02/103,976.19
  6. Step 6: Final answer
    x = 80,947.57

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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.