Home / 137,795.70-190,018.06-129,759.29

Finding the Fourth Proportional to 137,795.70, 190,018.06 and 129,759.29

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Solution

The fourth proportional to 137,795.70, 190,018.06 and 129,759.29 is: 178,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,795.70 : 190,018.06 = 129,759.29 : x
  2. Step 2: Convert to fraction form
    137,795.70/190,018.06 = 129,759.29/x
  3. Step 3: Cross multiply
    137,795.70x = 190,018.06 × 129,759.29
  4. Step 4: Simplify right side
    137,795.70x = 24,656,608,552.78
  5. Step 5: Solve for x
    x = 24,656,608,552.78/137,795.70
  6. Step 6: Final answer
    x = 178,935.98

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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.