Home / 156,972.23-216,619.33-85,351.62

Finding the Fourth Proportional to 156,972.23, 216,619.33 and 85,351.62

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Solution

The fourth proportional to 156,972.23, 216,619.33 and 85,351.62 is: 117,783.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.23 : 216,619.33 = 85,351.62 : x
  2. Step 2: Convert to fraction form
    156,972.23/216,619.33 = 85,351.62/x
  3. Step 3: Cross multiply
    156,972.23x = 216,619.33 × 85,351.62
  4. Step 4: Simplify right side
    156,972.23x = 18,488,810,738.81
  5. Step 5: Solve for x
    x = 18,488,810,738.81/156,972.23
  6. Step 6: Final answer
    x = 117,783.96

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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.