Home / 215,071.12-296,805-119,581.84

Finding the Fourth Proportional to 215,071.12, 296,805 and 119,581.84

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Solution

The fourth proportional to 215,071.12, 296,805 and 119,581.84 is: 165,026.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,071.12 : 296,805 = 119,581.84 : x
  2. Step 2: Convert to fraction form
    215,071.12/296,805 = 119,581.84/x
  3. Step 3: Cross multiply
    215,071.12x = 296,805 × 119,581.84
  4. Step 4: Simplify right side
    215,071.12x = 35,492,488,021.20
  5. Step 5: Solve for x
    x = 35,492,488,021.20/215,071.12
  6. Step 6: Final answer
    x = 165,026.75

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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.