Home / 215,831.28-297,855.72-120,354.96

Finding the Fourth Proportional to 215,831.28, 297,855.72 and 120,354.96

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Solution

The fourth proportional to 215,831.28, 297,855.72 and 120,354.96 is: 166,094.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,831.28 : 297,855.72 = 120,354.96 : x
  2. Step 2: Convert to fraction form
    215,831.28/297,855.72 = 120,354.96/x
  3. Step 3: Cross multiply
    215,831.28x = 297,855.72 × 120,354.96
  4. Step 4: Simplify right side
    215,831.28x = 35,848,413,266.37
  5. Step 5: Solve for x
    x = 35,848,413,266.37/215,831.28
  6. Step 6: Final answer
    x = 166,094.61

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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.