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Finding the Fourth Proportional to 119,679.84, 165,097.44 and 91,336.32

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Solution

The fourth proportional to 119,679.84, 165,097.44 and 91,336.32 is: 125,997.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,679.84 : 165,097.44 = 91,336.32 : x
  2. Step 2: Convert to fraction form
    119,679.84/165,097.44 = 91,336.32/x
  3. Step 3: Cross multiply
    119,679.84x = 165,097.44 × 91,336.32
  4. Step 4: Simplify right side
    119,679.84x = 15,079,392,611.02
  5. Step 5: Solve for x
    x = 15,079,392,611.02/119,679.84
  6. Step 6: Final answer
    x = 125,997.77

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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.