Home / 88,591.22-122,156.57-72,408.30

Finding the Fourth Proportional to 88,591.22, 122,156.57 and 72,408.30

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Solution

The fourth proportional to 88,591.22, 122,156.57 and 72,408.30 is: 99,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,591.22 : 122,156.57 = 72,408.30 : x
  2. Step 2: Convert to fraction form
    88,591.22/122,156.57 = 72,408.30/x
  3. Step 3: Cross multiply
    88,591.22x = 122,156.57 × 72,408.30
  4. Step 4: Simplify right side
    88,591.22x = 8,845,149,205.49
  5. Step 5: Solve for x
    x = 8,845,149,205.49/88,591.22
  6. Step 6: Final answer
    x = 99,842.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.