Home / 115,981.08-173,971.62-53,643.48

Finding the Fourth Proportional to 115,981.08, 173,971.62 and 53,643.48

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Solution

The fourth proportional to 115,981.08, 173,971.62 and 53,643.48 is: 80,465.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,981.08 : 173,971.62 = 53,643.48 : x
  2. Step 2: Convert to fraction form
    115,981.08/173,971.62 = 53,643.48/x
  3. Step 3: Cross multiply
    115,981.08x = 173,971.62 × 53,643.48
  4. Step 4: Simplify right side
    115,981.08x = 9,332,443,118.04
  5. Step 5: Solve for x
    x = 9,332,443,118.04/115,981.08
  6. Step 6: Final answer
    x = 80,465.22

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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.