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Finding the Fourth Proportional to 118,683, 163,800.86 and 67,695.84

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Solution

The fourth proportional to 118,683, 163,800.86 and 67,695.84 is: 93,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,683 : 163,800.86 = 67,695.84 : x
  2. Step 2: Convert to fraction form
    118,683/163,800.86 = 67,695.84/x
  3. Step 3: Cross multiply
    118,683x = 163,800.86 × 67,695.84
  4. Step 4: Simplify right side
    118,683x = 11,088,636,810.42
  5. Step 5: Solve for x
    x = 11,088,636,810.42/118,683
  6. Step 6: Final answer
    x = 93,430.71

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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.