Home / 118,785.20-163,923.63-65,072.16

Finding the Fourth Proportional to 118,785.20, 163,923.63 and 65,072.16

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Solution

The fourth proportional to 118,785.20, 163,923.63 and 65,072.16 is: 89,799.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,785.20 : 163,923.63 = 65,072.16 : x
  2. Step 2: Convert to fraction form
    118,785.20/163,923.63 = 65,072.16/x
  3. Step 3: Cross multiply
    118,785.20x = 163,923.63 × 65,072.16
  4. Step 4: Simplify right side
    118,785.20x = 10,666,864,679.14
  5. Step 5: Solve for x
    x = 10,666,864,679.14/118,785.20
  6. Step 6: Final answer
    x = 89,799.61

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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.