Home / 113,193.97-156,208.61-70,777.09

Finding the Fourth Proportional to 113,193.97, 156,208.61 and 70,777.09

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Solution

The fourth proportional to 113,193.97, 156,208.61 and 70,777.09 is: 97,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,193.97 : 156,208.61 = 70,777.09 : x
  2. Step 2: Convert to fraction form
    113,193.97/156,208.61 = 70,777.09/x
  3. Step 3: Cross multiply
    113,193.97x = 156,208.61 × 70,777.09
  4. Step 4: Simplify right side
    113,193.97x = 11,055,990,848.74
  5. Step 5: Solve for x
    x = 11,055,990,848.74/113,193.97
  6. Step 6: Final answer
    x = 97,672.97

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1.5x scale

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.