Home / 181,864.80-272,667.60-81,943.20

Finding the Fourth Proportional to 181,864.80, 272,667.60 and 81,943.20

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Solution

The fourth proportional to 181,864.80, 272,667.60 and 81,943.20 is: 122,856.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,864.80 : 272,667.60 = 81,943.20 : x
  2. Step 2: Convert to fraction form
    181,864.80/272,667.60 = 81,943.20/x
  3. Step 3: Cross multiply
    181,864.80x = 272,667.60 × 81,943.20
  4. Step 4: Simplify right side
    181,864.80x = 22,343,255,680.32
  5. Step 5: Solve for x
    x = 22,343,255,680.32/181,864.80
  6. Step 6: Final answer
    x = 122,856.41

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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.