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Finding the Fourth Proportional to 78,262.96, 117,394.95 and 22,102.85

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Solution

The fourth proportional to 78,262.96, 117,394.95 and 22,102.85 is: 33,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,262.96 : 117,394.95 = 22,102.85 : x
  2. Step 2: Convert to fraction form
    78,262.96/117,394.95 = 22,102.85/x
  3. Step 3: Cross multiply
    78,262.96x = 117,394.95 × 22,102.85
  4. Step 4: Simplify right side
    78,262.96x = 2,594,762,273.12
  5. Step 5: Solve for x
    x = 2,594,762,273.12/78,262.96
  6. Step 6: Final answer
    x = 33,154.41

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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.