Home / 97,817.20-146,596.20-86,671.60

Finding the Fourth Proportional to 97,817.20, 146,596.20 and 86,671.60

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Solution

The fourth proportional to 97,817.20, 146,596.20 and 86,671.60 is: 129,892.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,817.20 : 146,596.20 = 86,671.60 : x
  2. Step 2: Convert to fraction form
    97,817.20/146,596.20 = 86,671.60/x
  3. Step 3: Cross multiply
    97,817.20x = 146,596.20 × 86,671.60
  4. Step 4: Simplify right side
    97,817.20x = 12,705,727,207.92
  5. Step 5: Solve for x
    x = 12,705,727,207.92/97,817.20
  6. Step 6: Final answer
    x = 129,892.57

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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.