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Finding the Fourth Proportional to 89,158.52, 122,815.68 and 67,900.88

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Solution

The fourth proportional to 89,158.52, 122,815.68 and 67,900.88 is: 93,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,158.52 : 122,815.68 = 67,900.88 : x
  2. Step 2: Convert to fraction form
    89,158.52/122,815.68 = 67,900.88/x
  3. Step 3: Cross multiply
    89,158.52x = 122,815.68 × 67,900.88
  4. Step 4: Simplify right side
    89,158.52x = 8,339,292,749.80
  5. Step 5: Solve for x
    x = 8,339,292,749.80/89,158.52
  6. Step 6: Final answer
    x = 93,533.32

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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.