Home / 103,748.40-143,166.96-61,310.88

Finding the Fourth Proportional to 103,748.40, 143,166.96 and 61,310.88

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Solution

The fourth proportional to 103,748.40, 143,166.96 and 61,310.88 is: 84,605.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,748.40 : 143,166.96 = 61,310.88 : x
  2. Step 2: Convert to fraction form
    103,748.40/143,166.96 = 61,310.88/x
  3. Step 3: Cross multiply
    103,748.40x = 143,166.96 × 61,310.88
  4. Step 4: Simplify right side
    103,748.40x = 8,777,692,304.52
  5. Step 5: Solve for x
    x = 8,777,692,304.52/103,748.40
  6. Step 6: Final answer
    x = 84,605.57

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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.