Home / 205,923.40-308,913.90-87,593.80

Finding the Fourth Proportional to 205,923.40, 308,913.90 and 87,593.80

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Solution

The fourth proportional to 205,923.40, 308,913.90 and 87,593.80 is: 131,402.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,923.40 : 308,913.90 = 87,593.80 : x
  2. Step 2: Convert to fraction form
    205,923.40/308,913.90 = 87,593.80/x
  3. Step 3: Cross multiply
    205,923.40x = 308,913.90 × 87,593.80
  4. Step 4: Simplify right side
    205,923.40x = 27,058,942,373.82
  5. Step 5: Solve for x
    x = 27,058,942,373.82/205,923.40
  6. Step 6: Final answer
    x = 131,402.95

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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.