Home / 215,135.13-296,881.35-117,015.90

Finding the Fourth Proportional to 215,135.13, 296,881.35 and 117,015.90

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Solution

The fourth proportional to 215,135.13, 296,881.35 and 117,015.90 is: 161,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,135.13 : 296,881.35 = 117,015.90 : x
  2. Step 2: Convert to fraction form
    215,135.13/296,881.35 = 117,015.90/x
  3. Step 3: Cross multiply
    215,135.13x = 296,881.35 × 117,015.90
  4. Step 4: Simplify right side
    215,135.13x = 34,739,838,363.47
  5. Step 5: Solve for x
    x = 34,739,838,363.47/215,135.13
  6. Step 6: Final answer
    x = 161,479.15

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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.