Home / 215,700.64-297,662.08-120,205.60

Finding the Fourth Proportional to 215,700.64, 297,662.08 and 120,205.60

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Solution

The fourth proportional to 215,700.64, 297,662.08 and 120,205.60 is: 165,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,700.64 : 297,662.08 = 120,205.60 : x
  2. Step 2: Convert to fraction form
    215,700.64/297,662.08 = 120,205.60/x
  3. Step 3: Cross multiply
    215,700.64x = 297,662.08 × 120,205.60
  4. Step 4: Simplify right side
    215,700.64x = 35,780,648,923.65
  5. Step 5: Solve for x
    x = 35,780,648,923.65/215,700.64
  6. Step 6: Final answer
    x = 165,881.05

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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.