Home / 89,040.70-133,561.05-85,104.10

Finding the Fourth Proportional to 89,040.70, 133,561.05 and 85,104.10

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Solution

The fourth proportional to 89,040.70, 133,561.05 and 85,104.10 is: 127,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,040.70 : 133,561.05 = 85,104.10 : x
  2. Step 2: Convert to fraction form
    89,040.70/133,561.05 = 85,104.10/x
  3. Step 3: Cross multiply
    89,040.70x = 133,561.05 × 85,104.10
  4. Step 4: Simplify right side
    89,040.70x = 11,366,592,955.31
  5. Step 5: Solve for x
    x = 11,366,592,955.31/89,040.70
  6. Step 6: Final answer
    x = 127,656.15

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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.