Home / 215,629.32-297,559.80-120,133.56

Finding the Fourth Proportional to 215,629.32, 297,559.80 and 120,133.56

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Solution

The fourth proportional to 215,629.32, 297,559.80 and 120,133.56 is: 165,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,629.32 : 297,559.80 = 120,133.56 : x
  2. Step 2: Convert to fraction form
    215,629.32/297,559.80 = 120,133.56/x
  3. Step 3: Cross multiply
    215,629.32x = 297,559.80 × 120,133.56
  4. Step 4: Simplify right side
    215,629.32x = 35,746,918,086.89
  5. Step 5: Solve for x
    x = 35,746,918,086.89/215,629.32
  6. Step 6: Final answer
    x = 165,779.49

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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.