Home / 121,401.60-182,102.40-110,515.20

Finding the Fourth Proportional to 121,401.60, 182,102.40 and 110,515.20

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Solution

The fourth proportional to 121,401.60, 182,102.40 and 110,515.20 is: 165,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,401.60 : 182,102.40 = 110,515.20 : x
  2. Step 2: Convert to fraction form
    121,401.60/182,102.40 = 110,515.20/x
  3. Step 3: Cross multiply
    121,401.60x = 182,102.40 × 110,515.20
  4. Step 4: Simplify right side
    121,401.60x = 20,125,083,156.48
  5. Step 5: Solve for x
    x = 20,125,083,156.48/121,401.60
  6. Step 6: Final answer
    x = 165,772.80

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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.