Home / 215,107.80-296,849.01-119,612.45

Finding the Fourth Proportional to 215,107.80, 296,849.01 and 119,612.45

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Solution

The fourth proportional to 215,107.80, 296,849.01 and 119,612.45 is: 165,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,107.80 : 296,849.01 = 119,612.45 : x
  2. Step 2: Convert to fraction form
    215,107.80/296,849.01 = 119,612.45/x
  3. Step 3: Cross multiply
    215,107.80x = 296,849.01 × 119,612.45
  4. Step 4: Simplify right side
    215,107.80x = 35,506,835,881.93
  5. Step 5: Solve for x
    x = 35,506,835,881.93/215,107.80
  6. Step 6: Final answer
    x = 165,065.31

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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.