Home / 167,399.50-231,101.28-129,075.06

Finding the Fourth Proportional to 167,399.50, 231,101.28 and 129,075.06

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Solution

The fourth proportional to 167,399.50, 231,101.28 and 129,075.06 is: 178,192.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,399.50 : 231,101.28 = 129,075.06 : x
  2. Step 2: Convert to fraction form
    167,399.50/231,101.28 = 129,075.06/x
  3. Step 3: Cross multiply
    167,399.50x = 231,101.28 × 129,075.06
  4. Step 4: Simplify right side
    167,399.50x = 29,829,410,936.70
  5. Step 5: Solve for x
    x = 29,829,410,936.70/167,399.50
  6. Step 6: Final answer
    x = 178,192.95

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1.5x scale

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.