Home / 167,755.34-231,588.14-129,428.77

Finding the Fourth Proportional to 167,755.34, 231,588.14 and 129,428.77

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Solution

The fourth proportional to 167,755.34, 231,588.14 and 129,428.77 is: 178,677.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,755.34 : 231,588.14 = 129,428.77 : x
  2. Step 2: Convert to fraction form
    167,755.34/231,588.14 = 129,428.77/x
  3. Step 3: Cross multiply
    167,755.34x = 231,588.14 × 129,428.77
  4. Step 4: Simplify right side
    167,755.34x = 29,974,166,880.67
  5. Step 5: Solve for x
    x = 29,974,166,880.67/167,755.34
  6. Step 6: Final answer
    x = 178,677.88

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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.