Home / 102,251.75-141,107.07-56,928.56

Finding the Fourth Proportional to 102,251.75, 141,107.07 and 56,928.56

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Solution

The fourth proportional to 102,251.75, 141,107.07 and 56,928.56 is: 78,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,251.75 : 141,107.07 = 56,928.56 : x
  2. Step 2: Convert to fraction form
    102,251.75/141,107.07 = 56,928.56/x
  3. Step 3: Cross multiply
    102,251.75x = 141,107.07 × 56,928.56
  4. Step 4: Simplify right side
    102,251.75x = 8,033,021,808.87
  5. Step 5: Solve for x
    x = 8,033,021,808.87/102,251.75
  6. Step 6: Final answer
    x = 78,561.22

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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.