Home / 205,877.40-308,585.70-87,528.60

Finding the Fourth Proportional to 205,877.40, 308,585.70 and 87,528.60

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Solution

The fourth proportional to 205,877.40, 308,585.70 and 87,528.60 is: 131,194.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,877.40 : 308,585.70 = 87,528.60 : x
  2. Step 2: Convert to fraction form
    205,877.40/308,585.70 = 87,528.60/x
  3. Step 3: Cross multiply
    205,877.40x = 308,585.70 × 87,528.60
  4. Step 4: Simplify right side
    205,877.40x = 27,010,074,301.02
  5. Step 5: Solve for x
    x = 27,010,074,301.02/205,877.40
  6. Step 6: Final answer
    x = 131,194.95

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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.