Home / 121,911-182,865.24-92,509.44

Finding the Fourth Proportional to 121,911, 182,865.24 and 92,509.44

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Solution

The fourth proportional to 121,911, 182,865.24 and 92,509.44 is: 138,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,911 : 182,865.24 = 92,509.44 : x
  2. Step 2: Convert to fraction form
    121,911/182,865.24 = 92,509.44/x
  3. Step 3: Cross multiply
    121,911x = 182,865.24 × 92,509.44
  4. Step 4: Simplify right side
    121,911x = 16,916,760,947.87
  5. Step 5: Solve for x
    x = 16,916,760,947.87/121,911
  6. Step 6: Final answer
    x = 138,763.20

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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.