Home / 181,972.90-251,118.81-101,400.10

Finding the Fourth Proportional to 181,972.90, 251,118.81 and 101,400.10

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Solution

The fourth proportional to 181,972.90, 251,118.81 and 101,400.10 is: 139,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,972.90 : 251,118.81 = 101,400.10 : x
  2. Step 2: Convert to fraction form
    181,972.90/251,118.81 = 101,400.10/x
  3. Step 3: Cross multiply
    181,972.90x = 251,118.81 × 101,400.10
  4. Step 4: Simplify right side
    181,972.90x = 25,463,472,445.88
  5. Step 5: Solve for x
    x = 25,463,472,445.88/181,972.90
  6. Step 6: Final answer
    x = 139,930.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.