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Finding the Fourth Proportional to 159,066.40, 219,512.08 and 91,084.40

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Solution

The fourth proportional to 159,066.40, 219,512.08 and 91,084.40 is: 125,696.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,066.40 : 219,512.08 = 91,084.40 : x
  2. Step 2: Convert to fraction form
    159,066.40/219,512.08 = 91,084.40/x
  3. Step 3: Cross multiply
    159,066.40x = 219,512.08 × 91,084.40
  4. Step 4: Simplify right side
    159,066.40x = 19,994,126,099.55
  5. Step 5: Solve for x
    x = 19,994,126,099.55/159,066.40
  6. Step 6: Final answer
    x = 125,696.73

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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.