Home / 98,921.52-136,697.98-75,003.84

Finding the Fourth Proportional to 98,921.52, 136,697.98 and 75,003.84

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Solution

The fourth proportional to 98,921.52, 136,697.98 and 75,003.84 is: 103,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,921.52 : 136,697.98 = 75,003.84 : x
  2. Step 2: Convert to fraction form
    98,921.52/136,697.98 = 75,003.84/x
  3. Step 3: Cross multiply
    98,921.52x = 136,697.98 × 75,003.84
  4. Step 4: Simplify right side
    98,921.52x = 10,252,873,420.24
  5. Step 5: Solve for x
    x = 10,252,873,420.24/98,921.52
  6. Step 6: Final answer
    x = 103,646.54

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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.