Home / 131,107,584.80-196,661,377.20-90,763,623.20

Finding the Fourth Proportional to 131,107,584.80, 196,661,377.20 and 90,763,623.20

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Solution

The fourth proportional to 131,107,584.80, 196,661,377.20 and 90,763,623.20 is: 136,145,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,107,584.80 : 196,661,377.20 = 90,763,623.20 : x
  2. Step 2: Convert to fraction form
    131,107,584.80/196,661,377.20 = 90,763,623.20/x
  3. Step 3: Cross multiply
    131,107,584.80x = 196,661,377.20 × 90,763,623.20
  4. Step 4: Simplify right side
    131,107,584.80x = 17,849,699,138,173,870
  5. Step 5: Solve for x
    x = 17,849,699,138,173,870/131,107,584.80
  6. Step 6: Final answer
    x = 136,145,434.80

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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.