Home / 117,487.80-162,217.44-72,226.50

Finding the Fourth Proportional to 117,487.80, 162,217.44 and 72,226.50

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Solution

The fourth proportional to 117,487.80, 162,217.44 and 72,226.50 is: 99,724.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,487.80 : 162,217.44 = 72,226.50 : x
  2. Step 2: Convert to fraction form
    117,487.80/162,217.44 = 72,226.50/x
  3. Step 3: Cross multiply
    117,487.80x = 162,217.44 × 72,226.50
  4. Step 4: Simplify right side
    117,487.80x = 11,716,397,930.16
  5. Step 5: Solve for x
    x = 11,716,397,930.16/117,487.80
  6. Step 6: Final answer
    x = 99,724.38

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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.