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Finding the Fourth Proportional to 84,893.67, 117,238.19 and 69,934.59

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Solution

The fourth proportional to 84,893.67, 117,238.19 and 69,934.59 is: 96,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,893.67 : 117,238.19 = 69,934.59 : x
  2. Step 2: Convert to fraction form
    84,893.67/117,238.19 = 69,934.59/x
  3. Step 3: Cross multiply
    84,893.67x = 117,238.19 × 69,934.59
  4. Step 4: Simplify right side
    84,893.67x = 8,199,004,400.32
  5. Step 5: Solve for x
    x = 8,199,004,400.32/84,893.67
  6. Step 6: Final answer
    x = 96,579.69

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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.