Home / 88,014.20-132,021.30-78,337.40

Finding the Fourth Proportional to 88,014.20, 132,021.30 and 78,337.40

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Solution

The fourth proportional to 88,014.20, 132,021.30 and 78,337.40 is: 117,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,014.20 : 132,021.30 = 78,337.40 : x
  2. Step 2: Convert to fraction form
    88,014.20/132,021.30 = 78,337.40/x
  3. Step 3: Cross multiply
    88,014.20x = 132,021.30 × 78,337.40
  4. Step 4: Simplify right side
    88,014.20x = 10,342,205,386.62
  5. Step 5: Solve for x
    x = 10,342,205,386.62/88,014.20
  6. Step 6: Final answer
    x = 117,506.10

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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.