Home / 156,943.85-216,583.88-85,323.92

Finding the Fourth Proportional to 156,943.85, 216,583.88 and 85,323.92

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Solution

The fourth proportional to 156,943.85, 216,583.88 and 85,323.92 is: 117,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,943.85 : 216,583.88 = 85,323.92 : x
  2. Step 2: Convert to fraction form
    156,943.85/216,583.88 = 85,323.92/x
  3. Step 3: Cross multiply
    156,943.85x = 216,583.88 × 85,323.92
  4. Step 4: Simplify right side
    156,943.85x = 18,479,784,140.87
  5. Step 5: Solve for x
    x = 18,479,784,140.87/156,943.85
  6. Step 6: Final answer
    x = 117,747.75

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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.