Home / 85,769.37-118,258.79-73,812.15

Finding the Fourth Proportional to 85,769.37, 118,258.79 and 73,812.15

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Solution

The fourth proportional to 85,769.37, 118,258.79 and 73,812.15 is: 101,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,769.37 : 118,258.79 = 73,812.15 : x
  2. Step 2: Convert to fraction form
    85,769.37/118,258.79 = 73,812.15/x
  3. Step 3: Cross multiply
    85,769.37x = 118,258.79 × 73,812.15
  4. Step 4: Simplify right side
    85,769.37x = 8,728,935,177.24
  5. Step 5: Solve for x
    x = 8,728,935,177.24/85,769.37
  6. Step 6: Final answer
    x = 101,772.17

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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.