Home / 103,944.27-143,465.34-65,679.52

Finding the Fourth Proportional to 103,944.27, 143,465.34 and 65,679.52

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Solution

The fourth proportional to 103,944.27, 143,465.34 and 65,679.52 is: 90,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,944.27 : 143,465.34 = 65,679.52 : x
  2. Step 2: Convert to fraction form
    103,944.27/143,465.34 = 65,679.52/x
  3. Step 3: Cross multiply
    103,944.27x = 143,465.34 × 65,679.52
  4. Step 4: Simplify right side
    103,944.27x = 9,422,734,309.17
  5. Step 5: Solve for x
    x = 9,422,734,309.17/103,944.27
  6. Step 6: Final answer
    x = 90,651.80

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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.