Home / 129,994.73-179,393.93-76,280.66

Finding the Fourth Proportional to 129,994.73, 179,393.93 and 76,280.66

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Solution

The fourth proportional to 129,994.73, 179,393.93 and 76,280.66 is: 105,268.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,994.73 : 179,393.93 = 76,280.66 : x
  2. Step 2: Convert to fraction form
    129,994.73/179,393.93 = 76,280.66/x
  3. Step 3: Cross multiply
    129,994.73x = 179,393.93 × 76,280.66
  4. Step 4: Simplify right side
    129,994.73x = 13,684,287,380.39
  5. Step 5: Solve for x
    x = 13,684,287,380.39/129,994.73
  6. Step 6: Final answer
    x = 105,268.02

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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.