Home / 98,901.28-148,383.60-28,784.80

Finding the Fourth Proportional to 98,901.28, 148,383.60 and 28,784.80

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Solution

The fourth proportional to 98,901.28, 148,383.60 and 28,784.80 is: 43,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,901.28 : 148,383.60 = 28,784.80 : x
  2. Step 2: Convert to fraction form
    98,901.28/148,383.60 = 28,784.80/x
  3. Step 3: Cross multiply
    98,901.28x = 148,383.60 × 28,784.80
  4. Step 4: Simplify right side
    98,901.28x = 4,271,192,249.28
  5. Step 5: Solve for x
    x = 4,271,192,249.28/98,901.28
  6. Step 6: Final answer
    x = 43,186.42

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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.