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Finding the Fourth Proportional to 148,602.75, 205,071.78 and 84,941.92

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Solution

The fourth proportional to 148,602.75, 205,071.78 and 84,941.92 is: 117,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,602.75 : 205,071.78 = 84,941.92 : x
  2. Step 2: Convert to fraction form
    148,602.75/205,071.78 = 84,941.92/x
  3. Step 3: Cross multiply
    148,602.75x = 205,071.78 × 84,941.92
  4. Step 4: Simplify right side
    148,602.75x = 17,419,189,435.66
  5. Step 5: Solve for x
    x = 17,419,189,435.66/148,602.75
  6. Step 6: Final answer
    x = 117,219.83

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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.