Home / 103,972.48-143,481.68-56,225.68

Finding the Fourth Proportional to 103,972.48, 143,481.68 and 56,225.68

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Solution

The fourth proportional to 103,972.48, 143,481.68 and 56,225.68 is: 77,591.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,972.48 : 143,481.68 = 56,225.68 : x
  2. Step 2: Convert to fraction form
    103,972.48/143,481.68 = 56,225.68/x
  3. Step 3: Cross multiply
    103,972.48x = 143,481.68 × 56,225.68
  4. Step 4: Simplify right side
    103,972.48x = 8,067,355,025.54
  5. Step 5: Solve for x
    x = 8,067,355,025.54/103,972.48
  6. Step 6: Final answer
    x = 77,591.25

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1.5x scale

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.