Home / 157,820.02-236,785.39-81,882.05

Finding the Fourth Proportional to 157,820.02, 236,785.39 and 81,882.05

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Solution

The fourth proportional to 157,820.02, 236,785.39 and 81,882.05 is: 122,851.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,820.02 : 236,785.39 = 81,882.05 : x
  2. Step 2: Convert to fraction form
    157,820.02/236,785.39 = 81,882.05/x
  3. Step 3: Cross multiply
    157,820.02x = 236,785.39 × 81,882.05
  4. Step 4: Simplify right side
    157,820.02x = 19,388,471,754.62
  5. Step 5: Solve for x
    x = 19,388,471,754.62/157,820.02
  6. Step 6: Final answer
    x = 122,851.79

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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.