Home / 211,613.76-317,444.73-76,741.38

Finding the Fourth Proportional to 211,613.76, 317,444.73 and 76,741.38

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Solution

The fourth proportional to 211,613.76, 317,444.73 and 76,741.38 is: 115,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,613.76 : 317,444.73 = 76,741.38 : x
  2. Step 2: Convert to fraction form
    211,613.76/317,444.73 = 76,741.38/x
  3. Step 3: Cross multiply
    211,613.76x = 317,444.73 × 76,741.38
  4. Step 4: Simplify right side
    211,613.76x = 24,361,146,653.93
  5. Step 5: Solve for x
    x = 24,361,146,653.93/211,613.76
  6. Step 6: Final answer
    x = 115,120.81

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1.5x scale

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.