Home / 126,842.43-175,045.38-72,393.51

Finding the Fourth Proportional to 126,842.43, 175,045.38 and 72,393.51

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Solution

The fourth proportional to 126,842.43, 175,045.38 and 72,393.51 is: 99,904.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,842.43 : 175,045.38 = 72,393.51 : x
  2. Step 2: Convert to fraction form
    126,842.43/175,045.38 = 72,393.51/x
  3. Step 3: Cross multiply
    126,842.43x = 175,045.38 × 72,393.51
  4. Step 4: Simplify right side
    126,842.43x = 12,672,149,467.48
  5. Step 5: Solve for x
    x = 12,672,149,467.48/126,842.43
  6. Step 6: Final answer
    x = 99,904.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.