Home / 89,060.20-133,590.30-85,123.60

Finding the Fourth Proportional to 89,060.20, 133,590.30 and 85,123.60

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Solution

The fourth proportional to 89,060.20, 133,590.30 and 85,123.60 is: 127,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,060.20 : 133,590.30 = 85,123.60 : x
  2. Step 2: Convert to fraction form
    89,060.20/133,590.30 = 85,123.60/x
  3. Step 3: Cross multiply
    89,060.20x = 133,590.30 × 85,123.60
  4. Step 4: Simplify right side
    89,060.20x = 11,371,687,261.08
  5. Step 5: Solve for x
    x = 11,371,687,261.08/89,060.20
  6. Step 6: Final answer
    x = 127,685.40

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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.