Home / 88,277.40-132,416.10-78,600.60

Finding the Fourth Proportional to 88,277.40, 132,416.10 and 78,600.60

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Solution

The fourth proportional to 88,277.40, 132,416.10 and 78,600.60 is: 117,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,277.40 : 132,416.10 = 78,600.60 : x
  2. Step 2: Convert to fraction form
    88,277.40/132,416.10 = 78,600.60/x
  3. Step 3: Cross multiply
    88,277.40x = 132,416.10 × 78,600.60
  4. Step 4: Simplify right side
    88,277.40x = 10,407,984,909.66
  5. Step 5: Solve for x
    x = 10,407,984,909.66/88,277.40
  6. Step 6: Final answer
    x = 117,900.90

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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.