Home / 155,543.54-214,198.20-135,116.28

Finding the Fourth Proportional to 155,543.54, 214,198.20 and 135,116.28

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Solution

The fourth proportional to 155,543.54, 214,198.20 and 135,116.28 is: 186,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,543.54 : 214,198.20 = 135,116.28 : x
  2. Step 2: Convert to fraction form
    155,543.54/214,198.20 = 135,116.28/x
  3. Step 3: Cross multiply
    155,543.54x = 214,198.20 × 135,116.28
  4. Step 4: Simplify right side
    155,543.54x = 28,941,662,984.25
  5. Step 5: Solve for x
    x = 28,941,662,984.25/155,543.54
  6. Step 6: Final answer
    x = 186,067.92

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1.5x scale

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.