Home / 122,520.04-169,076.96-68,809.74

Finding the Fourth Proportional to 122,520.04, 169,076.96 and 68,809.74

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Solution

The fourth proportional to 122,520.04, 169,076.96 and 68,809.74 is: 94,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,520.04 : 169,076.96 = 68,809.74 : x
  2. Step 2: Convert to fraction form
    122,520.04/169,076.96 = 68,809.74/x
  3. Step 3: Cross multiply
    122,520.04x = 169,076.96 × 68,809.74
  4. Step 4: Simplify right side
    122,520.04x = 11,634,141,657.59
  5. Step 5: Solve for x
    x = 11,634,141,657.59/122,520.04
  6. Step 6: Final answer
    x = 94,957.05

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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.