Home / 103,986.20-143,500.95-56,239.53

Finding the Fourth Proportional to 103,986.20, 143,500.95 and 56,239.53

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Solution

The fourth proportional to 103,986.20, 143,500.95 and 56,239.53 is: 77,610.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,986.20 : 143,500.95 = 56,239.53 : x
  2. Step 2: Convert to fraction form
    103,986.20/143,500.95 = 56,239.53/x
  3. Step 3: Cross multiply
    103,986.20x = 143,500.95 × 56,239.53
  4. Step 4: Simplify right side
    103,986.20x = 8,070,425,982.55
  5. Step 5: Solve for x
    x = 8,070,425,982.55/103,986.20
  6. Step 6: Final answer
    x = 77,610.55

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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.