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Finding the Fourth Proportional to 118,752.32, 163,837.51 and 67,728.35

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Solution

The fourth proportional to 118,752.32, 163,837.51 and 67,728.35 is: 93,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,752.32 : 163,837.51 = 67,728.35 : x
  2. Step 2: Convert to fraction form
    118,752.32/163,837.51 = 67,728.35/x
  3. Step 3: Cross multiply
    118,752.32x = 163,837.51 × 67,728.35
  4. Step 4: Simplify right side
    118,752.32x = 11,096,444,651.17
  5. Step 5: Solve for x
    x = 11,096,444,651.17/118,752.32
  6. Step 6: Final answer
    x = 93,441.92

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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.