Home / 215,657.32-297,603.12-120,161.96

Finding the Fourth Proportional to 215,657.32, 297,603.12 and 120,161.96

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Solution

The fourth proportional to 215,657.32, 297,603.12 and 120,161.96 is: 165,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,657.32 : 297,603.12 = 120,161.96 : x
  2. Step 2: Convert to fraction form
    215,657.32/297,603.12 = 120,161.96/x
  3. Step 3: Cross multiply
    215,657.32x = 297,603.12 × 120,161.96
  4. Step 4: Simplify right side
    215,657.32x = 35,760,574,201.32
  5. Step 5: Solve for x
    x = 35,760,574,201.32/215,657.32
  6. Step 6: Final answer
    x = 165,821.29

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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.