Home / 118,785.13-163,792.12-75,696.37

Finding the Fourth Proportional to 118,785.13, 163,792.12 and 75,696.37

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Solution

The fourth proportional to 118,785.13, 163,792.12 and 75,696.37 is: 104,377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,785.13 : 163,792.12 = 75,696.37 : x
  2. Step 2: Convert to fraction form
    118,785.13/163,792.12 = 75,696.37/x
  3. Step 3: Cross multiply
    118,785.13x = 163,792.12 × 75,696.37
  4. Step 4: Simplify right side
    118,785.13x = 12,398,468,099.64
  5. Step 5: Solve for x
    x = 12,398,468,099.64/118,785.13
  6. Step 6: Final answer
    x = 104,377.27

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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.