Home / 98,688.96-147,812.04-76,435.02

Finding the Fourth Proportional to 98,688.96, 147,812.04 and 76,435.02

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Solution

The fourth proportional to 98,688.96, 147,812.04 and 76,435.02 is: 114,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,688.96 : 147,812.04 = 76,435.02 : x
  2. Step 2: Convert to fraction form
    98,688.96/147,812.04 = 76,435.02/x
  3. Step 3: Cross multiply
    98,688.96x = 147,812.04 × 76,435.02
  4. Step 4: Simplify right side
    98,688.96x = 11,298,016,233.64
  5. Step 5: Solve for x
    x = 11,298,016,233.64/98,688.96
  6. Step 6: Final answer
    x = 114,481.05

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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.