Home / 140,979.98-194,552.60-77,318.16

Finding the Fourth Proportional to 140,979.98, 194,552.60 and 77,318.16

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Solution

The fourth proportional to 140,979.98, 194,552.60 and 77,318.16 is: 106,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,979.98 : 194,552.60 = 77,318.16 : x
  2. Step 2: Convert to fraction form
    140,979.98/194,552.60 = 77,318.16/x
  3. Step 3: Cross multiply
    140,979.98x = 194,552.60 × 77,318.16
  4. Step 4: Simplify right side
    140,979.98x = 15,042,448,668.63
  5. Step 5: Solve for x
    x = 15,042,448,668.63/140,979.98
  6. Step 6: Final answer
    x = 106,699.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.