Home / 114,902.20-172,353.30-85,377.70

Finding the Fourth Proportional to 114,902.20, 172,353.30 and 85,377.70

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Solution

The fourth proportional to 114,902.20, 172,353.30 and 85,377.70 is: 128,066.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,902.20 : 172,353.30 = 85,377.70 : x
  2. Step 2: Convert to fraction form
    114,902.20/172,353.30 = 85,377.70/x
  3. Step 3: Cross multiply
    114,902.20x = 172,353.30 × 85,377.70
  4. Step 4: Simplify right side
    114,902.20x = 14,715,128,341.41
  5. Step 5: Solve for x
    x = 14,715,128,341.41/114,902.20
  6. Step 6: Final answer
    x = 128,066.55

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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.