Home / 142,003.18-213,048.97-42,163.90

Finding the Fourth Proportional to 142,003.18, 213,048.97 and 42,163.90

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Solution

The fourth proportional to 142,003.18, 213,048.97 and 42,163.90 is: 63,258.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,003.18 : 213,048.97 = 42,163.90 : x
  2. Step 2: Convert to fraction form
    142,003.18/213,048.97 = 42,163.90/x
  3. Step 3: Cross multiply
    142,003.18x = 213,048.97 × 42,163.90
  4. Step 4: Simplify right side
    142,003.18x = 8,982,974,828.15
  5. Step 5: Solve for x
    x = 8,982,974,828.15/142,003.18
  6. Step 6: Final answer
    x = 63,258.97

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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.