Home / 156,908.08-216,534.60-85,288.27

Finding the Fourth Proportional to 156,908.08, 216,534.60 and 85,288.27

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Solution

The fourth proportional to 156,908.08, 216,534.60 and 85,288.27 is: 117,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,908.08 : 216,534.60 = 85,288.27 : x
  2. Step 2: Convert to fraction form
    156,908.08/216,534.60 = 85,288.27/x
  3. Step 3: Cross multiply
    156,908.08x = 216,534.60 × 85,288.27
  4. Step 4: Simplify right side
    156,908.08x = 18,467,861,429.14
  5. Step 5: Solve for x
    x = 18,467,861,429.14/156,908.08
  6. Step 6: Final answer
    x = 117,698.60

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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.