Home / 118,661.26-163,711.80-67,637.19

Finding the Fourth Proportional to 118,661.26, 163,711.80 and 67,637.19

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Solution

The fourth proportional to 118,661.26, 163,711.80 and 67,637.19 is: 93,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,661.26 : 163,711.80 = 67,637.19 : x
  2. Step 2: Convert to fraction form
    118,661.26/163,711.80 = 67,637.19/x
  3. Step 3: Cross multiply
    118,661.26x = 163,711.80 × 67,637.19
  4. Step 4: Simplify right side
    118,661.26x = 11,073,006,121.84
  5. Step 5: Solve for x
    x = 11,073,006,121.84/118,661.26
  6. Step 6: Final answer
    x = 93,316.10

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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.