Home / 215,709.36-297,679.85-118,911.14

Finding the Fourth Proportional to 215,709.36, 297,679.85 and 118,911.14

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Solution

The fourth proportional to 215,709.36, 297,679.85 and 118,911.14 is: 164,097.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,709.36 : 297,679.85 = 118,911.14 : x
  2. Step 2: Convert to fraction form
    215,709.36/297,679.85 = 118,911.14/x
  3. Step 3: Cross multiply
    215,709.36x = 297,679.85 × 118,911.14
  4. Step 4: Simplify right side
    215,709.36x = 35,397,449,797.79
  5. Step 5: Solve for x
    x = 35,397,449,797.79/215,709.36
  6. Step 6: Final answer
    x = 164,097.89

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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.