Home / 74,073.90-111,173.07-69,403.04

Finding the Fourth Proportional to 74,073.90, 111,173.07 and 69,403.04

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Solution

The fourth proportional to 74,073.90, 111,173.07 and 69,403.04 is: 104,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,073.90 : 111,173.07 = 69,403.04 : x
  2. Step 2: Convert to fraction form
    74,073.90/111,173.07 = 69,403.04/x
  3. Step 3: Cross multiply
    74,073.90x = 111,173.07 × 69,403.04
  4. Step 4: Simplify right side
    74,073.90x = 7,715,748,468.27
  5. Step 5: Solve for x
    x = 7,715,748,468.27/74,073.90
  6. Step 6: Final answer
    x = 104,162.85

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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.