Home / 215,686.80-297,650.70-120,190.23

Finding the Fourth Proportional to 215,686.80, 297,650.70 and 120,190.23

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Solution

The fourth proportional to 215,686.80, 297,650.70 and 120,190.23 is: 165,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,686.80 : 297,650.70 = 120,190.23 : x
  2. Step 2: Convert to fraction form
    215,686.80/297,650.70 = 120,190.23/x
  3. Step 3: Cross multiply
    215,686.80x = 297,650.70 × 120,190.23
  4. Step 4: Simplify right side
    215,686.80x = 35,774,706,092.66
  5. Step 5: Solve for x
    x = 35,774,706,092.66/215,686.80
  6. Step 6: Final answer
    x = 165,864.14

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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.