Home / 126,385.74-189,687.78-51,547.14

Finding the Fourth Proportional to 126,385.74, 189,687.78 and 51,547.14

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Solution

The fourth proportional to 126,385.74, 189,687.78 and 51,547.14 is: 77,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,385.74 : 189,687.78 = 51,547.14 : x
  2. Step 2: Convert to fraction form
    126,385.74/189,687.78 = 51,547.14/x
  3. Step 3: Cross multiply
    126,385.74x = 189,687.78 × 51,547.14
  4. Step 4: Simplify right side
    126,385.74x = 9,777,862,551.95
  5. Step 5: Solve for x
    x = 9,777,862,551.95/126,385.74
  6. Step 6: Final answer
    x = 77,365.24

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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.