Home / 126,334.72-174,322.05-72,609.36

Finding the Fourth Proportional to 126,334.72, 174,322.05 and 72,609.36

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Solution

The fourth proportional to 126,334.72, 174,322.05 and 72,609.36 is: 100,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,334.72 : 174,322.05 = 72,609.36 : x
  2. Step 2: Convert to fraction form
    126,334.72/174,322.05 = 72,609.36/x
  3. Step 3: Cross multiply
    126,334.72x = 174,322.05 × 72,609.36
  4. Step 4: Simplify right side
    126,334.72x = 12,657,413,192.48
  5. Step 5: Solve for x
    x = 12,657,413,192.48/126,334.72
  6. Step 6: Final answer
    x = 100,189.51

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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.