Home / 97,824.64-135,120.16-75,435.52

Finding the Fourth Proportional to 97,824.64, 135,120.16 and 75,435.52

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Solution

The fourth proportional to 97,824.64, 135,120.16 and 75,435.52 is: 104,195.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,824.64 : 135,120.16 = 75,435.52 : x
  2. Step 2: Convert to fraction form
    97,824.64/135,120.16 = 75,435.52/x
  3. Step 3: Cross multiply
    97,824.64x = 135,120.16 × 75,435.52
  4. Step 4: Simplify right side
    97,824.64x = 10,192,859,532.08
  5. Step 5: Solve for x
    x = 10,192,859,532.08/97,824.64
  6. Step 6: Final answer
    x = 104,195.22

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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.