Home / 115,831.20-173,746.80-92,503.20

Finding the Fourth Proportional to 115,831.20, 173,746.80 and 92,503.20

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Solution

The fourth proportional to 115,831.20, 173,746.80 and 92,503.20 is: 138,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,831.20 : 173,746.80 = 92,503.20 : x
  2. Step 2: Convert to fraction form
    115,831.20/173,746.80 = 92,503.20/x
  3. Step 3: Cross multiply
    115,831.20x = 173,746.80 × 92,503.20
  4. Step 4: Simplify right side
    115,831.20x = 16,072,134,989.76
  5. Step 5: Solve for x
    x = 16,072,134,989.76/115,831.20
  6. Step 6: Final answer
    x = 138,754.80

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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.