Home / 109,478.12-151,079.58-59,177

Finding the Fourth Proportional to 109,478.12, 151,079.58 and 59,177

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Solution

The fourth proportional to 109,478.12, 151,079.58 and 59,177 is: 81,664.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,478.12 : 151,079.58 = 59,177 : x
  2. Step 2: Convert to fraction form
    109,478.12/151,079.58 = 59,177/x
  3. Step 3: Cross multiply
    109,478.12x = 151,079.58 × 59,177
  4. Step 4: Simplify right side
    109,478.12x = 8,940,436,305.66
  5. Step 5: Solve for x
    x = 8,940,436,305.66/109,478.12
  6. Step 6: Final answer
    x = 81,664.14

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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.