Home / 97,744.20-146,616.30-85,691.40

Finding the Fourth Proportional to 97,744.20, 146,616.30 and 85,691.40

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Solution

The fourth proportional to 97,744.20, 146,616.30 and 85,691.40 is: 128,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,744.20 : 146,616.30 = 85,691.40 : x
  2. Step 2: Convert to fraction form
    97,744.20/146,616.30 = 85,691.40/x
  3. Step 3: Cross multiply
    97,744.20x = 146,616.30 × 85,691.40
  4. Step 4: Simplify right side
    97,744.20x = 12,563,756,009.82
  5. Step 5: Solve for x
    x = 12,563,756,009.82/97,744.20
  6. Step 6: Final answer
    x = 128,537.10

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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.