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Finding the Fourth Proportional to 72,118.16, 108,187.48 and 22,202.40

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Solution

The fourth proportional to 72,118.16, 108,187.48 and 22,202.40 is: 33,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,118.16 : 108,187.48 = 22,202.40 : x
  2. Step 2: Convert to fraction form
    72,118.16/108,187.48 = 22,202.40/x
  3. Step 3: Cross multiply
    72,118.16x = 108,187.48 × 22,202.40
  4. Step 4: Simplify right side
    72,118.16x = 2,402,021,705.95
  5. Step 5: Solve for x
    x = 2,402,021,705.95/72,118.16
  6. Step 6: Final answer
    x = 33,306.75

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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.