Home / 215,679.38-297,638.72-125,089.06

Finding the Fourth Proportional to 215,679.38, 297,638.72 and 125,089.06

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Solution

The fourth proportional to 215,679.38, 297,638.72 and 125,089.06 is: 172,623.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,679.38 : 297,638.72 = 125,089.06 : x
  2. Step 2: Convert to fraction form
    215,679.38/297,638.72 = 125,089.06/x
  3. Step 3: Cross multiply
    215,679.38x = 297,638.72 × 125,089.06
  4. Step 4: Simplify right side
    215,679.38x = 37,231,347,704.40
  5. Step 5: Solve for x
    x = 37,231,347,704.40/215,679.38
  6. Step 6: Final answer
    x = 172,623.58

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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.