Home / 137,760.80-190,092.68-76,498.65

Finding the Fourth Proportional to 137,760.80, 190,092.68 and 76,498.65

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Solution

The fourth proportional to 137,760.80, 190,092.68 and 76,498.65 is: 105,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,760.80 : 190,092.68 = 76,498.65 : x
  2. Step 2: Convert to fraction form
    137,760.80/190,092.68 = 76,498.65/x
  3. Step 3: Cross multiply
    137,760.80x = 190,092.68 × 76,498.65
  4. Step 4: Simplify right side
    137,760.80x = 14,541,833,012.39
  5. Step 5: Solve for x
    x = 14,541,833,012.39/137,760.80
  6. Step 6: Final answer
    x = 105,558.57

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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.