Home / 98,616.96-148,073.04-78,837.12

Finding the Fourth Proportional to 98,616.96, 148,073.04 and 78,837.12

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Solution

The fourth proportional to 98,616.96, 148,073.04 and 78,837.12 is: 118,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,616.96 : 148,073.04 = 78,837.12 : x
  2. Step 2: Convert to fraction form
    98,616.96/148,073.04 = 78,837.12/x
  3. Step 3: Cross multiply
    98,616.96x = 148,073.04 × 78,837.12
  4. Step 4: Simplify right side
    98,616.96x = 11,673,652,023.24
  5. Step 5: Solve for x
    x = 11,673,652,023.24/98,616.96
  6. Step 6: Final answer
    x = 118,373.68

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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.