Home / 99,598.08-137,391.90-63,749.52

Finding the Fourth Proportional to 99,598.08, 137,391.90 and 63,749.52

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Solution

The fourth proportional to 99,598.08, 137,391.90 and 63,749.52 is: 87,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,598.08 : 137,391.90 = 63,749.52 : x
  2. Step 2: Convert to fraction form
    99,598.08/137,391.90 = 63,749.52/x
  3. Step 3: Cross multiply
    99,598.08x = 137,391.90 × 63,749.52
  4. Step 4: Simplify right side
    99,598.08x = 8,758,667,676.89
  5. Step 5: Solve for x
    x = 8,758,667,676.89/99,598.08
  6. Step 6: Final answer
    x = 87,940.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.