Home / 215,935.29-297,989.87-119,145.18

Finding the Fourth Proportional to 215,935.29, 297,989.87 and 119,145.18

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Solution

The fourth proportional to 215,935.29, 297,989.87 and 119,145.18 is: 164,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,935.29 : 297,989.87 = 119,145.18 : x
  2. Step 2: Convert to fraction form
    215,935.29/297,989.87 = 119,145.18/x
  3. Step 3: Cross multiply
    215,935.29x = 297,989.87 × 119,145.18
  4. Step 4: Simplify right side
    215,935.29x = 35,504,056,215.06
  5. Step 5: Solve for x
    x = 35,504,056,215.06/215,935.29
  6. Step 6: Final answer
    x = 164,419.89

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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.