Home / 88,511.40-132,680.70-79,180.20

Finding the Fourth Proportional to 88,511.40, 132,680.70 and 79,180.20

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Solution

The fourth proportional to 88,511.40, 132,680.70 and 79,180.20 is: 118,693.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,511.40 : 132,680.70 = 79,180.20 : x
  2. Step 2: Convert to fraction form
    88,511.40/132,680.70 = 79,180.20/x
  3. Step 3: Cross multiply
    88,511.40x = 132,680.70 × 79,180.20
  4. Step 4: Simplify right side
    88,511.40x = 10,505,684,362.14
  5. Step 5: Solve for x
    x = 10,505,684,362.14/88,511.40
  6. Step 6: Final answer
    x = 118,693.01

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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.