Home / 121,853.28-182,745.36-47,964

Finding the Fourth Proportional to 121,853.28, 182,745.36 and 47,964

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Solution

The fourth proportional to 121,853.28, 182,745.36 and 47,964 is: 71,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,853.28 : 182,745.36 = 47,964 : x
  2. Step 2: Convert to fraction form
    121,853.28/182,745.36 = 47,964/x
  3. Step 3: Cross multiply
    121,853.28x = 182,745.36 × 47,964
  4. Step 4: Simplify right side
    121,853.28x = 8,765,198,447.04
  5. Step 5: Solve for x
    x = 8,765,198,447.04/121,853.28
  6. Step 6: Final answer
    x = 71,932.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.