Home / 143,375.05-215,097.95-71,362.27

Finding the Fourth Proportional to 143,375.05, 215,097.95 and 71,362.27

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Solution

The fourth proportional to 143,375.05, 215,097.95 and 71,362.27 is: 107,061.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,375.05 : 215,097.95 = 71,362.27 : x
  2. Step 2: Convert to fraction form
    143,375.05/215,097.95 = 71,362.27/x
  3. Step 3: Cross multiply
    143,375.05x = 215,097.95 × 71,362.27
  4. Step 4: Simplify right side
    143,375.05x = 15,349,878,431.62
  5. Step 5: Solve for x
    x = 15,349,878,431.62/143,375.05
  6. Step 6: Final answer
    x = 107,061.01

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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.