Home / 88,021.70-132,032.55-78,344.90

Finding the Fourth Proportional to 88,021.70, 132,032.55 and 78,344.90

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Solution

The fourth proportional to 88,021.70, 132,032.55 and 78,344.90 is: 117,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,021.70 : 132,032.55 = 78,344.90 : x
  2. Step 2: Convert to fraction form
    88,021.70/132,032.55 = 78,344.90/x
  3. Step 3: Cross multiply
    88,021.70x = 132,032.55 × 78,344.90
  4. Step 4: Simplify right side
    88,021.70x = 10,344,076,926.50
  5. Step 5: Solve for x
    x = 10,344,076,926.50/88,021.70
  6. Step 6: Final answer
    x = 117,517.35

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1.5x scale

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.