Home / 98,434.17-147,674.77-31,874.38

Finding the Fourth Proportional to 98,434.17, 147,674.77 and 31,874.38

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Solution

The fourth proportional to 98,434.17, 147,674.77 and 31,874.38 is: 47,819.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,434.17 : 147,674.77 = 31,874.38 : x
  2. Step 2: Convert to fraction form
    98,434.17/147,674.77 = 31,874.38/x
  3. Step 3: Cross multiply
    98,434.17x = 147,674.77 × 31,874.38
  4. Step 4: Simplify right side
    98,434.17x = 4,707,041,286.52
  5. Step 5: Solve for x
    x = 4,707,041,286.52/98,434.17
  6. Step 6: Final answer
    x = 47,819.18

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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.