Home / 115,831.12-173,772.20-65,934.72

Finding the Fourth Proportional to 115,831.12, 173,772.20 and 65,934.72

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Solution

The fourth proportional to 115,831.12, 173,772.20 and 65,934.72 is: 98,916.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,831.12 : 173,772.20 = 65,934.72 : x
  2. Step 2: Convert to fraction form
    115,831.12/173,772.20 = 65,934.72/x
  3. Step 3: Cross multiply
    115,831.12x = 173,772.20 × 65,934.72
  4. Step 4: Simplify right side
    115,831.12x = 11,457,621,350.78
  5. Step 5: Solve for x
    x = 11,457,621,350.78/115,831.12
  6. Step 6: Final answer
    x = 98,916.61

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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.