Home / 113,021.90-169,532.81-88,080.60

Finding the Fourth Proportional to 113,021.90, 169,532.81 and 88,080.60

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Solution

The fourth proportional to 113,021.90, 169,532.81 and 88,080.60 is: 132,120.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,021.90 : 169,532.81 = 88,080.60 : x
  2. Step 2: Convert to fraction form
    113,021.90/169,532.81 = 88,080.60/x
  3. Step 3: Cross multiply
    113,021.90x = 169,532.81 × 88,080.60
  4. Step 4: Simplify right side
    113,021.90x = 14,932,551,624.49
  5. Step 5: Solve for x
    x = 14,932,551,624.49/113,021.90
  6. Step 6: Final answer
    x = 132,120.87

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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.