Home / 109,528.12-151,047.66-69,171.64

Finding the Fourth Proportional to 109,528.12, 151,047.66 and 69,171.64

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Solution

The fourth proportional to 109,528.12, 151,047.66 and 69,171.64 is: 95,392.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,528.12 : 151,047.66 = 69,171.64 : x
  2. Step 2: Convert to fraction form
    109,528.12/151,047.66 = 69,171.64/x
  3. Step 3: Cross multiply
    109,528.12x = 151,047.66 × 69,171.64
  4. Step 4: Simplify right side
    109,528.12x = 10,448,214,360.36
  5. Step 5: Solve for x
    x = 10,448,214,360.36/109,528.12
  6. Step 6: Final answer
    x = 95,392.99

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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.