Home / 212,943.24-319,390.02-55,159.56

Finding the Fourth Proportional to 212,943.24, 319,390.02 and 55,159.56

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Solution

The fourth proportional to 212,943.24, 319,390.02 and 55,159.56 is: 82,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,943.24 : 319,390.02 = 55,159.56 : x
  2. Step 2: Convert to fraction form
    212,943.24/319,390.02 = 55,159.56/x
  3. Step 3: Cross multiply
    212,943.24x = 319,390.02 × 55,159.56
  4. Step 4: Simplify right side
    212,943.24x = 17,617,412,971.59
  5. Step 5: Solve for x
    x = 17,617,412,971.59/212,943.24
  6. Step 6: Final answer
    x = 82,732.91

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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.