Home / 117,876.15-162,672.62-72,580.27

Finding the Fourth Proportional to 117,876.15, 162,672.62 and 72,580.27

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Solution

The fourth proportional to 117,876.15, 162,672.62 and 72,580.27 is: 100,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,876.15 : 162,672.62 = 72,580.27 : x
  2. Step 2: Convert to fraction form
    117,876.15/162,672.62 = 72,580.27/x
  3. Step 3: Cross multiply
    117,876.15x = 162,672.62 × 72,580.27
  4. Step 4: Simplify right side
    117,876.15x = 11,806,822,681.21
  5. Step 5: Solve for x
    x = 11,806,822,681.21/117,876.15
  6. Step 6: Final answer
    x = 100,162.95

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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.