Home / 137,905.91-190,329.33-77,481.23

Finding the Fourth Proportional to 137,905.91, 190,329.33 and 77,481.23

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Solution

The fourth proportional to 137,905.91, 190,329.33 and 77,481.23 is: 106,934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,905.91 : 190,329.33 = 77,481.23 : x
  2. Step 2: Convert to fraction form
    137,905.91/190,329.33 = 77,481.23/x
  3. Step 3: Cross multiply
    137,905.91x = 190,329.33 × 77,481.23
  4. Step 4: Simplify right side
    137,905.91x = 14,746,949,641.83
  5. Step 5: Solve for x
    x = 14,746,949,641.83/137,905.91
  6. Step 6: Final answer
    x = 106,934.87

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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.