Home / 436,663.12-654,994.64-121,120.04

Finding the Fourth Proportional to 436,663.12, 654,994.64 and 121,120.04

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Solution

The fourth proportional to 436,663.12, 654,994.64 and 121,120.04 is: 181,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,663.12 : 654,994.64 = 121,120.04 : x
  2. Step 2: Convert to fraction form
    436,663.12/654,994.64 = 121,120.04/x
  3. Step 3: Cross multiply
    436,663.12x = 654,994.64 × 121,120.04
  4. Step 4: Simplify right side
    436,663.12x = 79,332,976,996.59
  5. Step 5: Solve for x
    x = 79,332,976,996.59/436,663.12
  6. Step 6: Final answer
    x = 181,680.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.