Home / 100,662.18-151,109.91-54,006.18

Finding the Fourth Proportional to 100,662.18, 151,109.91 and 54,006.18

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Solution

The fourth proportional to 100,662.18, 151,109.91 and 54,006.18 is: 81,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,662.18 : 151,109.91 = 54,006.18 : x
  2. Step 2: Convert to fraction form
    100,662.18/151,109.91 = 54,006.18/x
  3. Step 3: Cross multiply
    100,662.18x = 151,109.91 × 54,006.18
  4. Step 4: Simplify right side
    100,662.18x = 8,160,868,999.24
  5. Step 5: Solve for x
    x = 8,160,868,999.24/100,662.18
  6. Step 6: Final answer
    x = 81,071.85

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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.