Home / 115,688.40-173,921.40-98,581.20

Finding the Fourth Proportional to 115,688.40, 173,921.40 and 98,581.20

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Solution

The fourth proportional to 115,688.40, 173,921.40 and 98,581.20 is: 148,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,688.40 : 173,921.40 = 98,581.20 : x
  2. Step 2: Convert to fraction form
    115,688.40/173,921.40 = 98,581.20/x
  3. Step 3: Cross multiply
    115,688.40x = 173,921.40 × 98,581.20
  4. Step 4: Simplify right side
    115,688.40x = 17,145,380,317.68
  5. Step 5: Solve for x
    x = 17,145,380,317.68/115,688.40
  6. Step 6: Final answer
    x = 148,203.11

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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.