Home / 231,082.80-346,721.40-125,977.20

Finding the Fourth Proportional to 231,082.80, 346,721.40 and 125,977.20

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Solution

The fourth proportional to 231,082.80, 346,721.40 and 125,977.20 is: 189,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,082.80 : 346,721.40 = 125,977.20 : x
  2. Step 2: Convert to fraction form
    231,082.80/346,721.40 = 125,977.20/x
  3. Step 3: Cross multiply
    231,082.80x = 346,721.40 × 125,977.20
  4. Step 4: Simplify right side
    231,082.80x = 43,678,991,152.08
  5. Step 5: Solve for x
    x = 43,678,991,152.08/231,082.80
  6. Step 6: Final answer
    x = 189,018.79

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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.