Home / 215,139.58-296,869.89-119,630.86

Finding the Fourth Proportional to 215,139.58, 296,869.89 and 119,630.86

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Solution

The fourth proportional to 215,139.58, 296,869.89 and 119,630.86 is: 165,077.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,139.58 : 296,869.89 = 119,630.86 : x
  2. Step 2: Convert to fraction form
    215,139.58/296,869.89 = 119,630.86/x
  3. Step 3: Cross multiply
    215,139.58x = 296,869.89 × 119,630.86
  4. Step 4: Simplify right side
    215,139.58x = 35,514,800,248.81
  5. Step 5: Solve for x
    x = 35,514,800,248.81/215,139.58
  6. Step 6: Final answer
    x = 165,077.95

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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.