Home / 113,106.54-156,160.05-70,131.66

Finding the Fourth Proportional to 113,106.54, 156,160.05 and 70,131.66

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Solution

The fourth proportional to 113,106.54, 156,160.05 and 70,131.66 is: 96,826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,106.54 : 156,160.05 = 70,131.66 : x
  2. Step 2: Convert to fraction form
    113,106.54/156,160.05 = 70,131.66/x
  3. Step 3: Cross multiply
    113,106.54x = 156,160.05 × 70,131.66
  4. Step 4: Simplify right side
    113,106.54x = 10,951,763,532.18
  5. Step 5: Solve for x
    x = 10,951,763,532.18/113,106.54
  6. Step 6: Final answer
    x = 96,826.97

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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.