Home / 98,751.08-148,138.14-34,689.56

Finding the Fourth Proportional to 98,751.08, 148,138.14 and 34,689.56

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Solution

The fourth proportional to 98,751.08, 148,138.14 and 34,689.56 is: 52,038.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,751.08 : 148,138.14 = 34,689.56 : x
  2. Step 2: Convert to fraction form
    98,751.08/148,138.14 = 34,689.56/x
  3. Step 3: Cross multiply
    98,751.08x = 148,138.14 × 34,689.56
  4. Step 4: Simplify right side
    98,751.08x = 5,138,846,895.82
  5. Step 5: Solve for x
    x = 5,138,846,895.82/98,751.08
  6. Step 6: Final answer
    x = 52,038.39

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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.