Home / 98,918.36-136,454.78-75,005.56

Finding the Fourth Proportional to 98,918.36, 136,454.78 and 75,005.56

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Solution

The fourth proportional to 98,918.36, 136,454.78 and 75,005.56 is: 103,467.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,918.36 : 136,454.78 = 75,005.56 : x
  2. Step 2: Convert to fraction form
    98,918.36/136,454.78 = 75,005.56/x
  3. Step 3: Cross multiply
    98,918.36x = 136,454.78 × 75,005.56
  4. Step 4: Simplify right side
    98,918.36x = 10,234,867,188.58
  5. Step 5: Solve for x
    x = 10,234,867,188.58/98,918.36
  6. Step 6: Final answer
    x = 103,467.82

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1.5x scale

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.