Home / 98,478.74-135,910.35-60,255.51

Finding the Fourth Proportional to 98,478.74, 135,910.35 and 60,255.51

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Solution

The fourth proportional to 98,478.74, 135,910.35 and 60,255.51 is: 83,158.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,478.74 : 135,910.35 = 60,255.51 : x
  2. Step 2: Convert to fraction form
    98,478.74/135,910.35 = 60,255.51/x
  3. Step 3: Cross multiply
    98,478.74x = 135,910.35 × 60,255.51
  4. Step 4: Simplify right side
    98,478.74x = 8,189,347,453.53
  5. Step 5: Solve for x
    x = 8,189,347,453.53/98,478.74
  6. Step 6: Final answer
    x = 83,158.54

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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.