Home / 117,334.74-162,055.56-79,543.38

Finding the Fourth Proportional to 117,334.74, 162,055.56 and 79,543.38

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Solution

The fourth proportional to 117,334.74, 162,055.56 and 79,543.38 is: 109,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,334.74 : 162,055.56 = 79,543.38 : x
  2. Step 2: Convert to fraction form
    117,334.74/162,055.56 = 79,543.38/x
  3. Step 3: Cross multiply
    117,334.74x = 162,055.56 × 79,543.38
  4. Step 4: Simplify right side
    117,334.74x = 12,890,446,990.19
  5. Step 5: Solve for x
    x = 12,890,446,990.19/117,334.74
  6. Step 6: Final answer
    x = 109,860.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.