Home / 117,130.92-175,353.66-72,623.40

Finding the Fourth Proportional to 117,130.92, 175,353.66 and 72,623.40

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Solution

The fourth proportional to 117,130.92, 175,353.66 and 72,623.40 is: 108,722.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,130.92 : 175,353.66 = 72,623.40 : x
  2. Step 2: Convert to fraction form
    117,130.92/175,353.66 = 72,623.40/x
  3. Step 3: Cross multiply
    117,130.92x = 175,353.66 × 72,623.40
  4. Step 4: Simplify right side
    117,130.92x = 12,734,778,991.64
  5. Step 5: Solve for x
    x = 12,734,778,991.64/117,130.92
  6. Step 6: Final answer
    x = 108,722.61

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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.