Home / 84,613.51-116,699.39-71,908.75

Finding the Fourth Proportional to 84,613.51, 116,699.39 and 71,908.75

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Solution

The fourth proportional to 84,613.51, 116,699.39 and 71,908.75 is: 99,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,613.51 : 116,699.39 = 71,908.75 : x
  2. Step 2: Convert to fraction form
    84,613.51/116,699.39 = 71,908.75/x
  3. Step 3: Cross multiply
    84,613.51x = 116,699.39 × 71,908.75
  4. Step 4: Simplify right side
    84,613.51x = 8,391,707,046.99
  5. Step 5: Solve for x
    x = 8,391,707,046.99/84,613.51
  6. Step 6: Final answer
    x = 99,176.92

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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.