Home / 142,163.05-213,173.28-47,359.91

Finding the Fourth Proportional to 142,163.05, 213,173.28 and 47,359.91

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Solution

The fourth proportional to 142,163.05, 213,173.28 and 47,359.91 is: 71,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,163.05 : 213,173.28 = 47,359.91 : x
  2. Step 2: Convert to fraction form
    142,163.05/213,173.28 = 47,359.91/x
  3. Step 3: Cross multiply
    142,163.05x = 213,173.28 × 47,359.91
  4. Step 4: Simplify right side
    142,163.05x = 10,095,867,355.20
  5. Step 5: Solve for x
    x = 10,095,867,355.20/142,163.05
  6. Step 6: Final answer
    x = 71,016.11

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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.