Home / 89,219.30-132,809.60-87,890.18

Finding the Fourth Proportional to 89,219.30, 132,809.60 and 87,890.18

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Solution

The fourth proportional to 89,219.30, 132,809.60 and 87,890.18 is: 130,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,219.30 : 132,809.60 = 87,890.18 : x
  2. Step 2: Convert to fraction form
    89,219.30/132,809.60 = 87,890.18/x
  3. Step 3: Cross multiply
    89,219.30x = 132,809.60 × 87,890.18
  4. Step 4: Simplify right side
    89,219.30x = 11,672,659,649.73
  5. Step 5: Solve for x
    x = 11,672,659,649.73/89,219.30
  6. Step 6: Final answer
    x = 130,831.11

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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.