Home / 103,932.39-143,449.67-67,570.56

Finding the Fourth Proportional to 103,932.39, 143,449.67 and 67,570.56

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Solution

The fourth proportional to 103,932.39, 143,449.67 and 67,570.56 is: 93,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,932.39 : 143,449.67 = 67,570.56 : x
  2. Step 2: Convert to fraction form
    103,932.39/143,449.67 = 67,570.56/x
  3. Step 3: Cross multiply
    103,932.39x = 143,449.67 × 67,570.56
  4. Step 4: Simplify right side
    103,932.39x = 9,692,974,195.86
  5. Step 5: Solve for x
    x = 9,692,974,195.86/103,932.39
  6. Step 6: Final answer
    x = 93,262.30

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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.