Home / 181,913.10-272,772.45-76,613.10

Finding the Fourth Proportional to 181,913.10, 272,772.45 and 76,613.10

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Solution

The fourth proportional to 181,913.10, 272,772.45 and 76,613.10 is: 114,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,913.10 : 272,772.45 = 76,613.10 : x
  2. Step 2: Convert to fraction form
    181,913.10/272,772.45 = 76,613.10/x
  3. Step 3: Cross multiply
    181,913.10x = 272,772.45 × 76,613.10
  4. Step 4: Simplify right side
    181,913.10x = 20,897,942,989.10
  5. Step 5: Solve for x
    x = 20,897,942,989.10/181,913.10
  6. Step 6: Final answer
    x = 114,878.71

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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.