Home / 109,905.81-151,680.10-69,076.58

Finding the Fourth Proportional to 109,905.81, 151,680.10 and 69,076.58

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Solution

The fourth proportional to 109,905.81, 151,680.10 and 69,076.58 is: 95,332.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,905.81 : 151,680.10 = 69,076.58 : x
  2. Step 2: Convert to fraction form
    109,905.81/151,680.10 = 69,076.58/x
  3. Step 3: Cross multiply
    109,905.81x = 151,680.10 × 69,076.58
  4. Step 4: Simplify right side
    109,905.81x = 10,477,542,562.06
  5. Step 5: Solve for x
    x = 10,477,542,562.06/109,905.81
  6. Step 6: Final answer
    x = 95,332.02

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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.