Home / 85,086.36-117,387.45-84,955.14

Finding the Fourth Proportional to 85,086.36, 117,387.45 and 84,955.14

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Solution

The fourth proportional to 85,086.36, 117,387.45 and 84,955.14 is: 117,206.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,086.36 : 117,387.45 = 84,955.14 : x
  2. Step 2: Convert to fraction form
    85,086.36/117,387.45 = 84,955.14/x
  3. Step 3: Cross multiply
    85,086.36x = 117,387.45 × 84,955.14
  4. Step 4: Simplify right side
    85,086.36x = 9,972,667,248.99
  5. Step 5: Solve for x
    x = 9,972,667,248.99/85,086.36
  6. Step 6: Final answer
    x = 117,206.42

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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.