Home / 155,218.59-233,865.09-140,243.12

Finding the Fourth Proportional to 155,218.59, 233,865.09 and 140,243.12

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Solution

The fourth proportional to 155,218.59, 233,865.09 and 140,243.12 is: 211,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,218.59 : 233,865.09 = 140,243.12 : x
  2. Step 2: Convert to fraction form
    155,218.59/233,865.09 = 140,243.12/x
  3. Step 3: Cross multiply
    155,218.59x = 233,865.09 × 140,243.12
  4. Step 4: Simplify right side
    155,218.59x = 32,797,968,711.36
  5. Step 5: Solve for x
    x = 32,797,968,711.36/155,218.59
  6. Step 6: Final answer
    x = 211,301.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.