Home / 215,521.21-297,407.46-120,010.87

Finding the Fourth Proportional to 215,521.21, 297,407.46 and 120,010.87

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Solution

The fourth proportional to 215,521.21, 297,407.46 and 120,010.87 is: 165,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,521.21 : 297,407.46 = 120,010.87 : x
  2. Step 2: Convert to fraction form
    215,521.21/297,407.46 = 120,010.87/x
  3. Step 3: Cross multiply
    215,521.21x = 297,407.46 × 120,010.87
  4. Step 4: Simplify right side
    215,521.21x = 35,692,128,019.09
  5. Step 5: Solve for x
    x = 35,692,128,019.09/215,521.21
  6. Step 6: Final answer
    x = 165,608.42

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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.