Home / 126,528.36-189,825.48-37,781.88

Finding the Fourth Proportional to 126,528.36, 189,825.48 and 37,781.88

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Solution

The fourth proportional to 126,528.36, 189,825.48 and 37,781.88 is: 56,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,528.36 : 189,825.48 = 37,781.88 : x
  2. Step 2: Convert to fraction form
    126,528.36/189,825.48 = 37,781.88/x
  3. Step 3: Cross multiply
    126,528.36x = 189,825.48 × 37,781.88
  4. Step 4: Simplify right side
    126,528.36x = 7,171,963,506.30
  5. Step 5: Solve for x
    x = 7,171,963,506.30/126,528.36
  6. Step 6: Final answer
    x = 56,682.66

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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.