Home / 118,456.11-163,469.73-64,741.77

Finding the Fourth Proportional to 118,456.11, 163,469.73 and 64,741.77

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Solution

The fourth proportional to 118,456.11, 163,469.73 and 64,741.77 is: 89,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,456.11 : 163,469.73 = 64,741.77 : x
  2. Step 2: Convert to fraction form
    118,456.11/163,469.73 = 64,741.77/x
  3. Step 3: Cross multiply
    118,456.11x = 163,469.73 × 64,741.77
  4. Step 4: Simplify right side
    118,456.11x = 10,583,319,661.62
  5. Step 5: Solve for x
    x = 10,583,319,661.62/118,456.11
  6. Step 6: Final answer
    x = 89,343.81

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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.