Home / 142,318.27-213,292.19-57,979.65

Finding the Fourth Proportional to 142,318.27, 213,292.19 and 57,979.65

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Solution

The fourth proportional to 142,318.27, 213,292.19 and 57,979.65 is: 86,894.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,318.27 : 213,292.19 = 57,979.65 : x
  2. Step 2: Convert to fraction form
    142,318.27/213,292.19 = 57,979.65/x
  3. Step 3: Cross multiply
    142,318.27x = 213,292.19 × 57,979.65
  4. Step 4: Simplify right side
    142,318.27x = 12,366,605,942.82
  5. Step 5: Solve for x
    x = 12,366,605,942.82/142,318.27
  6. Step 6: Final answer
    x = 86,894.02

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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.