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Finding the Fourth Proportional to 118,398.32, 163,390.04 and 68,094

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Solution

The fourth proportional to 118,398.32, 163,390.04 and 68,094 is: 93,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,398.32 : 163,390.04 = 68,094 : x
  2. Step 2: Convert to fraction form
    118,398.32/163,390.04 = 68,094/x
  3. Step 3: Cross multiply
    118,398.32x = 163,390.04 × 68,094
  4. Step 4: Simplify right side
    118,398.32x = 11,125,881,383.76
  5. Step 5: Solve for x
    x = 11,125,881,383.76/118,398.32
  6. Step 6: Final answer
    x = 93,969.93

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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.