Home / 89,218.30-132,808.11-87,889.18

Finding the Fourth Proportional to 89,218.30, 132,808.11 and 87,889.18

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Solution

The fourth proportional to 89,218.30, 132,808.11 and 87,889.18 is: 130,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,218.30 : 132,808.11 = 87,889.18 : x
  2. Step 2: Convert to fraction form
    89,218.30/132,808.11 = 87,889.18/x
  3. Step 3: Cross multiply
    89,218.30x = 132,808.11 × 87,889.18
  4. Step 4: Simplify right side
    89,218.30x = 11,672,395,885.25
  5. Step 5: Solve for x
    x = 11,672,395,885.25/89,218.30
  6. Step 6: Final answer
    x = 130,829.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.