Home / 155,062.44-213,930.18-87,955.56

Finding the Fourth Proportional to 155,062.44, 213,930.18 and 87,955.56

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Solution

The fourth proportional to 155,062.44, 213,930.18 and 87,955.56 is: 121,346.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,062.44 : 213,930.18 = 87,955.56 : x
  2. Step 2: Convert to fraction form
    155,062.44/213,930.18 = 87,955.56/x
  3. Step 3: Cross multiply
    155,062.44x = 213,930.18 × 87,955.56
  4. Step 4: Simplify right side
    155,062.44x = 18,816,348,782.80
  5. Step 5: Solve for x
    x = 18,816,348,782.80/155,062.44
  6. Step 6: Final answer
    x = 121,346.92

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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.