Home / 181,895.37-251,018.28-105,420.12

Finding the Fourth Proportional to 181,895.37, 251,018.28 and 105,420.12

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Solution

The fourth proportional to 181,895.37, 251,018.28 and 105,420.12 is: 145,481.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,895.37 : 251,018.28 = 105,420.12 : x
  2. Step 2: Convert to fraction form
    181,895.37/251,018.28 = 105,420.12/x
  3. Step 3: Cross multiply
    181,895.37x = 251,018.28 × 105,420.12
  4. Step 4: Simplify right side
    181,895.37x = 26,462,377,199.79
  5. Step 5: Solve for x
    x = 26,462,377,199.79/181,895.37
  6. Step 6: Final answer
    x = 145,481.31

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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.