Home / 78,229.04-117,343.32-67,667.66

Finding the Fourth Proportional to 78,229.04, 117,343.32 and 67,667.66

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Solution

The fourth proportional to 78,229.04, 117,343.32 and 67,667.66 is: 101,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,229.04 : 117,343.32 = 67,667.66 : x
  2. Step 2: Convert to fraction form
    78,229.04/117,343.32 = 67,667.66/x
  3. Step 3: Cross multiply
    78,229.04x = 117,343.32 × 67,667.66
  4. Step 4: Simplify right side
    78,229.04x = 7,940,347,881.03
  5. Step 5: Solve for x
    x = 7,940,347,881.03/78,229.04
  6. Step 6: Final answer
    x = 101,501.28

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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.