Home / 117,811.85-175,385.21-117,111.20

Finding the Fourth Proportional to 117,811.85, 175,385.21 and 117,111.20

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Solution

The fourth proportional to 117,811.85, 175,385.21 and 117,111.20 is: 174,342.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,811.85 : 175,385.21 = 117,111.20 : x
  2. Step 2: Convert to fraction form
    117,811.85/175,385.21 = 117,111.20/x
  3. Step 3: Cross multiply
    117,811.85x = 175,385.21 × 117,111.20
  4. Step 4: Simplify right side
    117,811.85x = 20,539,570,942.87
  5. Step 5: Solve for x
    x = 20,539,570,942.87/117,811.85
  6. Step 6: Final answer
    x = 174,342.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.