Home / 98,553.67-147,615.79-64,781.56

Finding the Fourth Proportional to 98,553.67, 147,615.79 and 64,781.56

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Solution

The fourth proportional to 98,553.67, 147,615.79 and 64,781.56 is: 97,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,553.67 : 147,615.79 = 64,781.56 : x
  2. Step 2: Convert to fraction form
    98,553.67/147,615.79 = 64,781.56/x
  3. Step 3: Cross multiply
    98,553.67x = 147,615.79 × 64,781.56
  4. Step 4: Simplify right side
    98,553.67x = 9,562,780,832.92
  5. Step 5: Solve for x
    x = 9,562,780,832.92/98,553.67
  6. Step 6: Final answer
    x = 97,031.20

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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.