Home / 137,924.09-190,335.42-77,494.70

Finding the Fourth Proportional to 137,924.09, 190,335.42 and 77,494.70

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Solution

The fourth proportional to 137,924.09, 190,335.42 and 77,494.70 is: 106,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,924.09 : 190,335.42 = 77,494.70 : x
  2. Step 2: Convert to fraction form
    137,924.09/190,335.42 = 77,494.70/x
  3. Step 3: Cross multiply
    137,924.09x = 190,335.42 × 77,494.70
  4. Step 4: Simplify right side
    137,924.09x = 14,749,985,320.60
  5. Step 5: Solve for x
    x = 14,749,985,320.60/137,924.09
  6. Step 6: Final answer
    x = 106,942.78

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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.