Home / 215,105.86-296,853.32-118,317.17

Finding the Fourth Proportional to 215,105.86, 296,853.32 and 118,317.17

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Solution

The fourth proportional to 215,105.86, 296,853.32 and 118,317.17 is: 163,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,105.86 : 296,853.32 = 118,317.17 : x
  2. Step 2: Convert to fraction form
    215,105.86/296,853.32 = 118,317.17/x
  3. Step 3: Cross multiply
    215,105.86x = 296,853.32 × 118,317.17
  4. Step 4: Simplify right side
    215,105.86x = 35,122,845,765.43
  5. Step 5: Solve for x
    x = 35,122,845,765.43/215,105.86
  6. Step 6: Final answer
    x = 163,281.68

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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.