Home / 123,975.60-185,963.40-118,726.80

Finding the Fourth Proportional to 123,975.60, 185,963.40 and 118,726.80

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Solution

The fourth proportional to 123,975.60, 185,963.40 and 118,726.80 is: 178,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,975.60 : 185,963.40 = 118,726.80 : x
  2. Step 2: Convert to fraction form
    123,975.60/185,963.40 = 118,726.80/x
  3. Step 3: Cross multiply
    123,975.60x = 185,963.40 × 118,726.80
  4. Step 4: Simplify right side
    123,975.60x = 22,078,839,399.12
  5. Step 5: Solve for x
    x = 22,078,839,399.12/123,975.60
  6. Step 6: Final answer
    x = 178,090.20

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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.