Home / 98,014.76-135,203.28-71,126

Finding the Fourth Proportional to 98,014.76, 135,203.28 and 71,126

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Solution

The fourth proportional to 98,014.76, 135,203.28 and 71,126 is: 98,112.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,014.76 : 135,203.28 = 71,126 : x
  2. Step 2: Convert to fraction form
    98,014.76/135,203.28 = 71,126/x
  3. Step 3: Cross multiply
    98,014.76x = 135,203.28 × 71,126
  4. Step 4: Simplify right side
    98,014.76x = 9,616,468,493.28
  5. Step 5: Solve for x
    x = 9,616,468,493.28/98,014.76
  6. Step 6: Final answer
    x = 98,112.45

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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.