Home / 100,184.93-138,253.89-57,163.29

Finding the Fourth Proportional to 100,184.93, 138,253.89 and 57,163.29

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Solution

The fourth proportional to 100,184.93, 138,253.89 and 57,163.29 is: 78,884.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,184.93 : 138,253.89 = 57,163.29 : x
  2. Step 2: Convert to fraction form
    100,184.93/138,253.89 = 57,163.29/x
  3. Step 3: Cross multiply
    100,184.93x = 138,253.89 × 57,163.29
  4. Step 4: Simplify right side
    100,184.93x = 7,903,047,207.70
  5. Step 5: Solve for x
    x = 7,903,047,207.70/100,184.93
  6. Step 6: Final answer
    x = 78,884.59

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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.