Home / 105,817.36-158,642.82-72,436.24

Finding the Fourth Proportional to 105,817.36, 158,642.82 and 72,436.24

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Solution

The fourth proportional to 105,817.36, 158,642.82 and 72,436.24 is: 108,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,817.36 : 158,642.82 = 72,436.24 : x
  2. Step 2: Convert to fraction form
    105,817.36/158,642.82 = 72,436.24/x
  3. Step 3: Cross multiply
    105,817.36x = 158,642.82 × 72,436.24
  4. Step 4: Simplify right side
    105,817.36x = 11,491,489,383.80
  5. Step 5: Solve for x
    x = 11,491,489,383.80/105,817.36
  6. Step 6: Final answer
    x = 108,597.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.