Home / 215,833.50-297,887.09-125,217.72

Finding the Fourth Proportional to 215,833.50, 297,887.09 and 125,217.72

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Solution

The fourth proportional to 215,833.50, 297,887.09 and 125,217.72 is: 172,821.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,833.50 : 297,887.09 = 125,217.72 : x
  2. Step 2: Convert to fraction form
    215,833.50/297,887.09 = 125,217.72/x
  3. Step 3: Cross multiply
    215,833.50x = 297,887.09 × 125,217.72
  4. Step 4: Simplify right side
    215,833.50x = 37,300,741,601.15
  5. Step 5: Solve for x
    x = 37,300,741,601.15/215,833.50
  6. Step 6: Final answer
    x = 172,821.84

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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.