Home / 126,394.48-189,539.12-51,463.80

Finding the Fourth Proportional to 126,394.48, 189,539.12 and 51,463.80

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Solution

The fourth proportional to 126,394.48, 189,539.12 and 51,463.80 is: 77,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,394.48 : 189,539.12 = 51,463.80 : x
  2. Step 2: Convert to fraction form
    126,394.48/189,539.12 = 51,463.80/x
  3. Step 3: Cross multiply
    126,394.48x = 189,539.12 × 51,463.80
  4. Step 4: Simplify right side
    126,394.48x = 9,754,403,363.86
  5. Step 5: Solve for x
    x = 9,754,403,363.86/126,394.48
  6. Step 6: Final answer
    x = 77,174.28

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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.