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Finding the Fourth Proportional to 125,980.86, 173,852.10 and 68,620.00

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Solution

The fourth proportional to 125,980.86, 173,852.10 and 68,620.00 is: 94,694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,980.86 : 173,852.10 = 68,620.00 : x
  2. Step 2: Convert to fraction form
    125,980.86/173,852.10 = 68,620.00/x
  3. Step 3: Cross multiply
    125,980.86x = 173,852.10 × 68,620.00
  4. Step 4: Simplify right side
    125,980.86x = 11,929,730,555.87
  5. Step 5: Solve for x
    x = 11,929,730,555.87/125,980.86
  6. Step 6: Final answer
    x = 94,694.79

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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.