Home / 207,066.20-310,304.10-118,131.80

Finding the Fourth Proportional to 207,066.20, 310,304.10 and 118,131.80

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Solution

The fourth proportional to 207,066.20, 310,304.10 and 118,131.80 is: 177,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,066.20 : 310,304.10 = 118,131.80 : x
  2. Step 2: Convert to fraction form
    207,066.20/310,304.10 = 118,131.80/x
  3. Step 3: Cross multiply
    207,066.20x = 310,304.10 × 118,131.80
  4. Step 4: Simplify right side
    207,066.20x = 36,656,781,880.38
  5. Step 5: Solve for x
    x = 36,656,781,880.38/207,066.20
  6. Step 6: Final answer
    x = 177,029.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.