Home / 137,021.30-205,507.70-37,189.26

Finding the Fourth Proportional to 137,021.30, 205,507.70 and 37,189.26

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Solution

The fourth proportional to 137,021.30, 205,507.70 and 37,189.26 is: 55,777.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,021.30 : 205,507.70 = 37,189.26 : x
  2. Step 2: Convert to fraction form
    137,021.30/205,507.70 = 37,189.26/x
  3. Step 3: Cross multiply
    137,021.30x = 205,507.70 × 37,189.26
  4. Step 4: Simplify right side
    137,021.30x = 7,642,679,287.30
  5. Step 5: Solve for x
    x = 7,642,679,287.30/137,021.30
  6. Step 6: Final answer
    x = 55,777.31

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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.