Home / 103,778.88-143,162.55-60,730.08

Finding the Fourth Proportional to 103,778.88, 143,162.55 and 60,730.08

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Solution

The fourth proportional to 103,778.88, 143,162.55 and 60,730.08 is: 83,776.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,778.88 : 143,162.55 = 60,730.08 : x
  2. Step 2: Convert to fraction form
    103,778.88/143,162.55 = 60,730.08/x
  3. Step 3: Cross multiply
    103,778.88x = 143,162.55 × 60,730.08
  4. Step 4: Simplify right side
    103,778.88x = 8,694,273,114.50
  5. Step 5: Solve for x
    x = 8,694,273,114.50/103,778.88
  6. Step 6: Final answer
    x = 83,776.90

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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.