Home / 126,531.42-189,796.98-51,686.74

Finding the Fourth Proportional to 126,531.42, 189,796.98 and 51,686.74

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Solution

The fourth proportional to 126,531.42, 189,796.98 and 51,686.74 is: 77,530.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,531.42 : 189,796.98 = 51,686.74 : x
  2. Step 2: Convert to fraction form
    126,531.42/189,796.98 = 51,686.74/x
  3. Step 3: Cross multiply
    126,531.42x = 189,796.98 × 51,686.74
  4. Step 4: Simplify right side
    126,531.42x = 9,809,987,158.05
  5. Step 5: Solve for x
    x = 9,809,987,158.05/126,531.42
  6. Step 6: Final answer
    x = 77,530.05

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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.