Home / 215,921.03-297,971.48-120,425.27

Finding the Fourth Proportional to 215,921.03, 297,971.48 and 120,425.27

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Solution

The fourth proportional to 215,921.03, 297,971.48 and 120,425.27 is: 166,187.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,921.03 : 297,971.48 = 120,425.27 : x
  2. Step 2: Convert to fraction form
    215,921.03/297,971.48 = 120,425.27/x
  3. Step 3: Cross multiply
    215,921.03x = 297,971.48 × 120,425.27
  4. Step 4: Simplify right side
    215,921.03x = 35,883,295,931.30
  5. Step 5: Solve for x
    x = 35,883,295,931.30/215,921.03
  6. Step 6: Final answer
    x = 166,187.13

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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.