Home / 109,701.66-151,388.07-59,400.78

Finding the Fourth Proportional to 109,701.66, 151,388.07 and 59,400.78

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Solution

The fourth proportional to 109,701.66, 151,388.07 and 59,400.78 is: 81,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,701.66 : 151,388.07 = 59,400.78 : x
  2. Step 2: Convert to fraction form
    109,701.66/151,388.07 = 59,400.78/x
  3. Step 3: Cross multiply
    109,701.66x = 151,388.07 × 59,400.78
  4. Step 4: Simplify right side
    109,701.66x = 8,992,569,440.69
  5. Step 5: Solve for x
    x = 8,992,569,440.69/109,701.66
  6. Step 6: Final answer
    x = 81,972.96

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1.5x scale

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.