Home / 181,916.80-272,875.20-82,124.80

Finding the Fourth Proportional to 181,916.80, 272,875.20 and 82,124.80

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Solution

The fourth proportional to 181,916.80, 272,875.20 and 82,124.80 is: 123,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,916.80 : 272,875.20 = 82,124.80 : x
  2. Step 2: Convert to fraction form
    181,916.80/272,875.20 = 82,124.80/x
  3. Step 3: Cross multiply
    181,916.80x = 272,875.20 × 82,124.80
  4. Step 4: Simplify right side
    181,916.80x = 22,409,821,224.96
  5. Step 5: Solve for x
    x = 22,409,821,224.96/181,916.80
  6. Step 6: Final answer
    x = 123,187.20

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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.