Home / 113,170.14-156,116.22-76,873.45

Finding the Fourth Proportional to 113,170.14, 156,116.22 and 76,873.45

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Solution

The fourth proportional to 113,170.14, 156,116.22 and 76,873.45 is: 106,045.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,170.14 : 156,116.22 = 76,873.45 : x
  2. Step 2: Convert to fraction form
    113,170.14/156,116.22 = 76,873.45/x
  3. Step 3: Cross multiply
    113,170.14x = 156,116.22 × 76,873.45
  4. Step 4: Simplify right side
    113,170.14x = 12,001,192,624.54
  5. Step 5: Solve for x
    x = 12,001,192,624.54/113,170.14
  6. Step 6: Final answer
    x = 106,045.58

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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.