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Finding the Fourth Proportional to 133,095.40, 199,643.10 and 79,951.30

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Solution

The fourth proportional to 133,095.40, 199,643.10 and 79,951.30 is: 119,926.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,095.40 : 199,643.10 = 79,951.30 : x
  2. Step 2: Convert to fraction form
    133,095.40/199,643.10 = 79,951.30/x
  3. Step 3: Cross multiply
    133,095.40x = 199,643.10 × 79,951.30
  4. Step 4: Simplify right side
    133,095.40x = 15,961,725,381.03
  5. Step 5: Solve for x
    x = 15,961,725,381.03/133,095.40
  6. Step 6: Final answer
    x = 119,926.95

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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.