Home / 126,723.48-174,858.91-72,998

Finding the Fourth Proportional to 126,723.48, 174,858.91 and 72,998

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Solution

The fourth proportional to 126,723.48, 174,858.91 and 72,998 is: 100,726.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,723.48 : 174,858.91 = 72,998 : x
  2. Step 2: Convert to fraction form
    126,723.48/174,858.91 = 72,998/x
  3. Step 3: Cross multiply
    126,723.48x = 174,858.91 × 72,998
  4. Step 4: Simplify right side
    126,723.48x = 12,764,350,712.18
  5. Step 5: Solve for x
    x = 12,764,350,712.18/126,723.48
  6. Step 6: Final answer
    x = 100,726.01

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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.