Home / 98,140.96-147,236.32-28,020.56

Finding the Fourth Proportional to 98,140.96, 147,236.32 and 28,020.56

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Solution

The fourth proportional to 98,140.96, 147,236.32 and 28,020.56 is: 42,037.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,140.96 : 147,236.32 = 28,020.56 : x
  2. Step 2: Convert to fraction form
    98,140.96/147,236.32 = 28,020.56/x
  3. Step 3: Cross multiply
    98,140.96x = 147,236.32 × 28,020.56
  4. Step 4: Simplify right side
    98,140.96x = 4,125,644,138.74
  5. Step 5: Solve for x
    x = 4,125,644,138.74/98,140.96
  6. Step 6: Final answer
    x = 42,037.94

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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.