Home / 156,685.27-216,222.32-85,064.67

Finding the Fourth Proportional to 156,685.27, 216,222.32 and 85,064.67

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Solution

The fourth proportional to 156,685.27, 216,222.32 and 85,064.67 is: 117,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685.27 : 216,222.32 = 85,064.67 : x
  2. Step 2: Convert to fraction form
    156,685.27/216,222.32 = 85,064.67/x
  3. Step 3: Cross multiply
    156,685.27x = 216,222.32 × 85,064.67
  4. Step 4: Simplify right side
    156,685.27x = 18,392,880,297.43
  5. Step 5: Solve for x
    x = 18,392,880,297.43/156,685.27
  6. Step 6: Final answer
    x = 117,387.42

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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.