Home / 103,986.52-143,501.42-58,674.11

Finding the Fourth Proportional to 103,986.52, 143,501.42 and 58,674.11

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Solution

The fourth proportional to 103,986.52, 143,501.42 and 58,674.11 is: 80,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,986.52 : 143,501.42 = 58,674.11 : x
  2. Step 2: Convert to fraction form
    103,986.52/143,501.42 = 58,674.11/x
  3. Step 3: Cross multiply
    103,986.52x = 143,501.42 × 58,674.11
  4. Step 4: Simplify right side
    103,986.52x = 8,419,817,531.41
  5. Step 5: Solve for x
    x = 8,419,817,531.41/103,986.52
  6. Step 6: Final answer
    x = 80,970.28

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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.