Home / 144,747.12-199,727.78-90,994.08

Finding the Fourth Proportional to 144,747.12, 199,727.78 and 90,994.08

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Solution

The fourth proportional to 144,747.12, 199,727.78 and 90,994.08 is: 125,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,747.12 : 199,727.78 = 90,994.08 : x
  2. Step 2: Convert to fraction form
    144,747.12/199,727.78 = 90,994.08/x
  3. Step 3: Cross multiply
    144,747.12x = 199,727.78 × 90,994.08
  4. Step 4: Simplify right side
    144,747.12x = 18,174,045,136.57
  5. Step 5: Solve for x
    x = 18,174,045,136.57/144,747.12
  6. Step 6: Final answer
    x = 125,557.21

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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.