Home / 215,938.76-297,995.36-120,445.43

Finding the Fourth Proportional to 215,938.76, 297,995.36 and 120,445.43

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Solution

The fourth proportional to 215,938.76, 297,995.36 and 120,445.43 is: 166,214.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,938.76 : 297,995.36 = 120,445.43 : x
  2. Step 2: Convert to fraction form
    215,938.76/297,995.36 = 120,445.43/x
  3. Step 3: Cross multiply
    215,938.76x = 297,995.36 × 120,445.43
  4. Step 4: Simplify right side
    215,938.76x = 35,892,177,181.00
  5. Step 5: Solve for x
    x = 35,892,177,181.00/215,938.76
  6. Step 6: Final answer
    x = 166,214.62

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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.