Home / 181,943.20-272,914.80-135,287.20

Finding the Fourth Proportional to 181,943.20, 272,914.80 and 135,287.20

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Solution

The fourth proportional to 181,943.20, 272,914.80 and 135,287.20 is: 202,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,943.20 : 272,914.80 = 135,287.20 : x
  2. Step 2: Convert to fraction form
    181,943.20/272,914.80 = 135,287.20/x
  3. Step 3: Cross multiply
    181,943.20x = 272,914.80 × 135,287.20
  4. Step 4: Simplify right side
    181,943.20x = 36,921,879,130.56
  5. Step 5: Solve for x
    x = 36,921,879,130.56/181,943.20
  6. Step 6: Final answer
    x = 202,930.80

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1.5x scale

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.