Home / 142,040.80-213,052.83-53,286.87

Finding the Fourth Proportional to 142,040.80, 213,052.83 and 53,286.87

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Solution

The fourth proportional to 142,040.80, 213,052.83 and 53,286.87 is: 79,927.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,040.80 : 213,052.83 = 53,286.87 : x
  2. Step 2: Convert to fraction form
    142,040.80/213,052.83 = 53,286.87/x
  3. Step 3: Cross multiply
    142,040.80x = 213,052.83 × 53,286.87
  4. Step 4: Simplify right side
    142,040.80x = 11,352,917,390.08
  5. Step 5: Solve for x
    x = 11,352,917,390.08/142,040.80
  6. Step 6: Final answer
    x = 79,927.16

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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.