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Finding the Fourth Proportional to 98,751.68, 148,149.74 and 31,287.77

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Solution

The fourth proportional to 98,751.68, 148,149.74 and 31,287.77 is: 46,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,751.68 : 148,149.74 = 31,287.77 : x
  2. Step 2: Convert to fraction form
    98,751.68/148,149.74 = 31,287.77/x
  3. Step 3: Cross multiply
    98,751.68x = 148,149.74 × 31,287.77
  4. Step 4: Simplify right side
    98,751.68x = 4,635,274,093.49
  5. Step 5: Solve for x
    x = 4,635,274,093.49/98,751.68
  6. Step 6: Final answer
    x = 46,938.69

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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.