Home / 316,158.56-474,238.64-129,170.06

Finding the Fourth Proportional to 316,158.56, 474,238.64 and 129,170.06

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Solution

The fourth proportional to 316,158.56, 474,238.64 and 129,170.06 is: 193,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,158.56 : 474,238.64 = 129,170.06 : x
  2. Step 2: Convert to fraction form
    316,158.56/474,238.64 = 129,170.06/x
  3. Step 3: Cross multiply
    316,158.56x = 474,238.64 × 129,170.06
  4. Step 4: Simplify right side
    316,158.56x = 61,257,433,583.12
  5. Step 5: Solve for x
    x = 61,257,433,583.12/316,158.56
  6. Step 6: Final answer
    x = 193,755.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.