Home / 113,174.10-156,193.74-67,876.98

Finding the Fourth Proportional to 113,174.10, 156,193.74 and 67,876.98

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Solution

The fourth proportional to 113,174.10, 156,193.74 and 67,876.98 is: 93,678.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,174.10 : 156,193.74 = 67,876.98 : x
  2. Step 2: Convert to fraction form
    113,174.10/156,193.74 = 67,876.98/x
  3. Step 3: Cross multiply
    113,174.10x = 156,193.74 × 67,876.98
  4. Step 4: Simplify right side
    113,174.10x = 10,601,959,366.11
  5. Step 5: Solve for x
    x = 10,601,959,366.11/113,174.10
  6. Step 6: Final answer
    x = 93,678.32

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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.