Home / 126,646.68-189,960.16-51,746.88

Finding the Fourth Proportional to 126,646.68, 189,960.16 and 51,746.88

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Solution

The fourth proportional to 126,646.68, 189,960.16 and 51,746.88 is: 77,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,646.68 : 189,960.16 = 51,746.88 : x
  2. Step 2: Convert to fraction form
    126,646.68/189,960.16 = 51,746.88/x
  3. Step 3: Cross multiply
    126,646.68x = 189,960.16 × 51,746.88
  4. Step 4: Simplify right side
    126,646.68x = 9,829,845,604.30
  5. Step 5: Solve for x
    x = 9,829,845,604.30/126,646.68
  6. Step 6: Final answer
    x = 77,616.29

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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.