Home / 156,772.26-216,347.28-85,153.68

Finding the Fourth Proportional to 156,772.26, 216,347.28 and 85,153.68

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Solution

The fourth proportional to 156,772.26, 216,347.28 and 85,153.68 is: 117,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,772.26 : 216,347.28 = 85,153.68 : x
  2. Step 2: Convert to fraction form
    156,772.26/216,347.28 = 85,153.68/x
  3. Step 3: Cross multiply
    156,772.26x = 216,347.28 × 85,153.68
  4. Step 4: Simplify right side
    156,772.26x = 18,422,767,049.99
  5. Step 5: Solve for x
    x = 18,422,767,049.99/156,772.26
  6. Step 6: Final answer
    x = 117,512.93

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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.