Home / 156,839.17-216,434.94-85,219.71

Finding the Fourth Proportional to 156,839.17, 216,434.94 and 85,219.71

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Solution

The fourth proportional to 156,839.17, 216,434.94 and 85,219.71 is: 117,601.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,839.17 : 216,434.94 = 85,219.71 : x
  2. Step 2: Convert to fraction form
    156,839.17/216,434.94 = 85,219.71/x
  3. Step 3: Cross multiply
    156,839.17x = 216,434.94 × 85,219.71
  4. Step 4: Simplify right side
    156,839.17x = 18,444,522,820.67
  5. Step 5: Solve for x
    x = 18,444,522,820.67/156,839.17
  6. Step 6: Final answer
    x = 117,601.51

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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.