Home / 85,253.96-117,613.14-81,301.16

Finding the Fourth Proportional to 85,253.96, 117,613.14 and 81,301.16

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Solution

The fourth proportional to 85,253.96, 117,613.14 and 81,301.16 is: 112,160.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,253.96 : 117,613.14 = 81,301.16 : x
  2. Step 2: Convert to fraction form
    85,253.96/117,613.14 = 81,301.16/x
  3. Step 3: Cross multiply
    85,253.96x = 117,613.14 × 81,301.16
  4. Step 4: Simplify right side
    85,253.96x = 9,562,084,713.24
  5. Step 5: Solve for x
    x = 9,562,084,713.24/85,253.96
  6. Step 6: Final answer
    x = 112,160.01

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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.