Home / 100,801.19-151,117.04-67,419.37

Finding the Fourth Proportional to 100,801.19, 151,117.04 and 67,419.37

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Solution

The fourth proportional to 100,801.19, 151,117.04 and 67,419.37 is: 101,072.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,801.19 : 151,117.04 = 67,419.37 : x
  2. Step 2: Convert to fraction form
    100,801.19/151,117.04 = 67,419.37/x
  3. Step 3: Cross multiply
    100,801.19x = 151,117.04 × 67,419.37
  4. Step 4: Simplify right side
    100,801.19x = 10,188,214,878.94
  5. Step 5: Solve for x
    x = 10,188,214,878.94/100,801.19
  6. Step 6: Final answer
    x = 101,072.37

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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.