Home / 101,276.16-151,919.28-42,105.60

Finding the Fourth Proportional to 101,276.16, 151,919.28 and 42,105.60

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Solution

The fourth proportional to 101,276.16, 151,919.28 and 42,105.60 is: 63,160.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,276.16 : 151,919.28 = 42,105.60 : x
  2. Step 2: Convert to fraction form
    101,276.16/151,919.28 = 42,105.60/x
  3. Step 3: Cross multiply
    101,276.16x = 151,919.28 × 42,105.60
  4. Step 4: Simplify right side
    101,276.16x = 6,396,652,435.97
  5. Step 5: Solve for x
    x = 6,396,652,435.97/101,276.16
  6. Step 6: Final answer
    x = 63,160.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.