Home / 215,735.64-297,725.40-120,243.06

Finding the Fourth Proportional to 215,735.64, 297,725.40 and 120,243.06

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Solution

The fourth proportional to 215,735.64, 297,725.40 and 120,243.06 is: 165,941.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,735.64 : 297,725.40 = 120,243.06 : x
  2. Step 2: Convert to fraction form
    215,735.64/297,725.40 = 120,243.06/x
  3. Step 3: Cross multiply
    215,735.64x = 297,725.40 × 120,243.06
  4. Step 4: Simplify right side
    215,735.64x = 35,799,413,135.72
  5. Step 5: Solve for x
    x = 35,799,413,135.72/215,735.64
  6. Step 6: Final answer
    x = 165,941.12

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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.