Home / 156,908.37-216,532.94-85,288.17

Finding the Fourth Proportional to 156,908.37, 216,532.94 and 85,288.17

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Solution

The fourth proportional to 156,908.37, 216,532.94 and 85,288.17 is: 117,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,908.37 : 216,532.94 = 85,288.17 : x
  2. Step 2: Convert to fraction form
    156,908.37/216,532.94 = 85,288.17/x
  3. Step 3: Cross multiply
    156,908.37x = 216,532.94 × 85,288.17
  4. Step 4: Simplify right side
    156,908.37x = 18,467,697,770.88
  5. Step 5: Solve for x
    x = 18,467,697,770.88/156,908.37
  6. Step 6: Final answer
    x = 117,697.34

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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.