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Finding the Fourth Proportional to 133,095.90, 199,643.85 and 79,951.80

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Solution

The fourth proportional to 133,095.90, 199,643.85 and 79,951.80 is: 119,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,095.90 : 199,643.85 = 79,951.80 : x
  2. Step 2: Convert to fraction form
    133,095.90/199,643.85 = 79,951.80/x
  3. Step 3: Cross multiply
    133,095.90x = 199,643.85 × 79,951.80
  4. Step 4: Simplify right side
    133,095.90x = 15,961,885,166.43
  5. Step 5: Solve for x
    x = 15,961,885,166.43/133,095.90
  6. Step 6: Final answer
    x = 119,927.70

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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.