Home / 205,592.78-308,434.50-87,365.18

Finding the Fourth Proportional to 205,592.78, 308,434.50 and 87,365.18

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Solution

The fourth proportional to 205,592.78, 308,434.50 and 87,365.18 is: 131,067.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,592.78 : 308,434.50 = 87,365.18 : x
  2. Step 2: Convert to fraction form
    205,592.78/308,434.50 = 87,365.18/x
  3. Step 3: Cross multiply
    205,592.78x = 308,434.50 × 87,365.18
  4. Step 4: Simplify right side
    205,592.78x = 26,946,435,610.71
  5. Step 5: Solve for x
    x = 26,946,435,610.71/205,592.78
  6. Step 6: Final answer
    x = 131,067.03

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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.