Home / 156,803.42-216,390.56-85,184.57

Finding the Fourth Proportional to 156,803.42, 216,390.56 and 85,184.57

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Solution

The fourth proportional to 156,803.42, 216,390.56 and 85,184.57 is: 117,555.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,803.42 : 216,390.56 = 85,184.57 : x
  2. Step 2: Convert to fraction form
    156,803.42/216,390.56 = 85,184.57/x
  3. Step 3: Cross multiply
    156,803.42x = 216,390.56 × 85,184.57
  4. Step 4: Simplify right side
    156,803.42x = 18,433,135,297.78
  5. Step 5: Solve for x
    x = 18,433,135,297.78/156,803.42
  6. Step 6: Final answer
    x = 117,555.70

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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.