Home / 137,035.80-205,553.70-126,538.20

Finding the Fourth Proportional to 137,035.80, 205,553.70 and 126,538.20

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Solution

The fourth proportional to 137,035.80, 205,553.70 and 126,538.20 is: 189,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,035.80 : 205,553.70 = 126,538.20 : x
  2. Step 2: Convert to fraction form
    137,035.80/205,553.70 = 126,538.20/x
  3. Step 3: Cross multiply
    137,035.80x = 205,553.70 × 126,538.20
  4. Step 4: Simplify right side
    137,035.80x = 26,010,395,201.34
  5. Step 5: Solve for x
    x = 26,010,395,201.34/137,035.80
  6. Step 6: Final answer
    x = 189,807.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.