Home / 117,711.15-162,444.59-63,999.78

Finding the Fourth Proportional to 117,711.15, 162,444.59 and 63,999.78

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Solution

The fourth proportional to 117,711.15, 162,444.59 and 63,999.78 is: 88,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,711.15 : 162,444.59 = 63,999.78 : x
  2. Step 2: Convert to fraction form
    117,711.15/162,444.59 = 63,999.78/x
  3. Step 3: Cross multiply
    117,711.15x = 162,444.59 × 63,999.78
  4. Step 4: Simplify right side
    117,711.15x = 10,396,418,022.19
  5. Step 5: Solve for x
    x = 10,396,418,022.19/117,711.15
  6. Step 6: Final answer
    x = 88,321.44

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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.