Home / 109,946.71-151,742.75-69,664.22

Finding the Fourth Proportional to 109,946.71, 151,742.75 and 69,664.22

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Solution

The fourth proportional to 109,946.71, 151,742.75 and 69,664.22 is: 96,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,946.71 : 151,742.75 = 69,664.22 : x
  2. Step 2: Convert to fraction form
    109,946.71/151,742.75 = 69,664.22/x
  3. Step 3: Cross multiply
    109,946.71x = 151,742.75 × 69,664.22
  4. Step 4: Simplify right side
    109,946.71x = 10,571,040,319.41
  5. Step 5: Solve for x
    x = 10,571,040,319.41/109,946.71
  6. Step 6: Final answer
    x = 96,146.95

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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.