Home / 73,960.08-102,180.72-70,318.68

Finding the Fourth Proportional to 73,960.08, 102,180.72 and 70,318.68

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Solution

The fourth proportional to 73,960.08, 102,180.72 and 70,318.68 is: 97,149.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,960.08 : 102,180.72 = 70,318.68 : x
  2. Step 2: Convert to fraction form
    73,960.08/102,180.72 = 70,318.68/x
  3. Step 3: Cross multiply
    73,960.08x = 102,180.72 × 70,318.68
  4. Step 4: Simplify right side
    73,960.08x = 7,185,213,351.85
  5. Step 5: Solve for x
    x = 7,185,213,351.85/73,960.08
  6. Step 6: Final answer
    x = 97,149.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.