Home / 113,197.24-156,212.94-70,780.60

Finding the Fourth Proportional to 113,197.24, 156,212.94 and 70,780.60

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Solution

The fourth proportional to 113,197.24, 156,212.94 and 70,780.60 is: 97,677.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,197.24 : 156,212.94 = 70,780.60 : x
  2. Step 2: Convert to fraction form
    113,197.24/156,212.94 = 70,780.60/x
  3. Step 3: Cross multiply
    113,197.24x = 156,212.94 × 70,780.60
  4. Step 4: Simplify right side
    113,197.24x = 11,056,845,620.96
  5. Step 5: Solve for x
    x = 11,056,845,620.96/113,197.24
  6. Step 6: Final answer
    x = 97,677.70

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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.