Home / 98,739.92-148,110.28-31,272.30

Finding the Fourth Proportional to 98,739.92, 148,110.28 and 31,272.30

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Solution

The fourth proportional to 98,739.92, 148,110.28 and 31,272.30 is: 46,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,739.92 : 148,110.28 = 31,272.30 : x
  2. Step 2: Convert to fraction form
    98,739.92/148,110.28 = 31,272.30/x
  3. Step 3: Cross multiply
    98,739.92x = 148,110.28 × 31,272.30
  4. Step 4: Simplify right side
    98,739.92x = 4,631,749,109.24
  5. Step 5: Solve for x
    x = 4,631,749,109.24/98,739.92
  6. Step 6: Final answer
    x = 46,908.58

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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.