Home / 215,531.21-297,433.05-120,037.88

Finding the Fourth Proportional to 215,531.21, 297,433.05 and 120,037.88

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Solution

The fourth proportional to 215,531.21, 297,433.05 and 120,037.88 is: 165,652.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,531.21 : 297,433.05 = 120,037.88 : x
  2. Step 2: Convert to fraction form
    215,531.21/297,433.05 = 120,037.88/x
  3. Step 3: Cross multiply
    215,531.21x = 297,433.05 × 120,037.88
  4. Step 4: Simplify right side
    215,531.21x = 35,703,232,763.93
  5. Step 5: Solve for x
    x = 35,703,232,763.93/215,531.21
  6. Step 6: Final answer
    x = 165,652.26

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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.