Home / 107,122.20-160,856.10-80,856.60

Finding the Fourth Proportional to 107,122.20, 160,856.10 and 80,856.60

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Solution

The fourth proportional to 107,122.20, 160,856.10 and 80,856.60 is: 121,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,122.20 : 160,856.10 = 80,856.60 : x
  2. Step 2: Convert to fraction form
    107,122.20/160,856.10 = 80,856.60/x
  3. Step 3: Cross multiply
    107,122.20x = 160,856.10 × 80,856.60
  4. Step 4: Simplify right side
    107,122.20x = 13,006,277,335.26
  5. Step 5: Solve for x
    x = 13,006,277,335.26/107,122.20
  6. Step 6: Final answer
    x = 121,415.33

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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.