Home / 126,588.99-174,534.03-81,186.87

Finding the Fourth Proportional to 126,588.99, 174,534.03 and 81,186.87

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Solution

The fourth proportional to 126,588.99, 174,534.03 and 81,186.87 is: 111,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,588.99 : 174,534.03 = 81,186.87 : x
  2. Step 2: Convert to fraction form
    126,588.99/174,534.03 = 81,186.87/x
  3. Step 3: Cross multiply
    126,588.99x = 174,534.03 × 81,186.87
  4. Step 4: Simplify right side
    126,588.99x = 14,169,871,604.19
  5. Step 5: Solve for x
    x = 14,169,871,604.19/126,588.99
  6. Step 6: Final answer
    x = 111,936.05

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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.