Home / 198,619.32-297,835.14-72,171.42

Finding the Fourth Proportional to 198,619.32, 297,835.14 and 72,171.42

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Solution

The fourth proportional to 198,619.32, 297,835.14 and 72,171.42 is: 108,223.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,619.32 : 297,835.14 = 72,171.42 : x
  2. Step 2: Convert to fraction form
    198,619.32/297,835.14 = 72,171.42/x
  3. Step 3: Cross multiply
    198,619.32x = 297,835.14 × 72,171.42
  4. Step 4: Simplify right side
    198,619.32x = 21,495,184,979.70
  5. Step 5: Solve for x
    x = 21,495,184,979.70/198,619.32
  6. Step 6: Final answer
    x = 108,223.03

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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.