Home / 173,418.03-239,355.48-105,420.61

Finding the Fourth Proportional to 173,418.03, 239,355.48 and 105,420.61

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Solution

The fourth proportional to 173,418.03, 239,355.48 and 105,420.61 is: 145,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,418.03 : 239,355.48 = 105,420.61 : x
  2. Step 2: Convert to fraction form
    173,418.03/239,355.48 = 105,420.61/x
  3. Step 3: Cross multiply
    173,418.03x = 239,355.48 × 105,420.61
  4. Step 4: Simplify right side
    173,418.03x = 25,233,001,007.64
  5. Step 5: Solve for x
    x = 25,233,001,007.64/173,418.03
  6. Step 6: Final answer
    x = 145,503.91

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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.