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Finding the Fourth Proportional to 88,408.40, 132,526.20 and 79,077.20

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Solution

The fourth proportional to 88,408.40, 132,526.20 and 79,077.20 is: 118,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,408.40 : 132,526.20 = 79,077.20 : x
  2. Step 2: Convert to fraction form
    88,408.40/132,526.20 = 79,077.20/x
  3. Step 3: Cross multiply
    88,408.40x = 132,526.20 × 79,077.20
  4. Step 4: Simplify right side
    88,408.40x = 10,479,800,822.64
  5. Step 5: Solve for x
    x = 10,479,800,822.64/88,408.40
  6. Step 6: Final answer
    x = 118,538.52

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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.