Home / 156,790.40-216,371.14-85,168.92

Finding the Fourth Proportional to 156,790.40, 216,371.14 and 85,168.92

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Solution

The fourth proportional to 156,790.40, 216,371.14 and 85,168.92 is: 117,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,790.40 : 216,371.14 = 85,168.92 : x
  2. Step 2: Convert to fraction form
    156,790.40/216,371.14 = 85,168.92/x
  3. Step 3: Cross multiply
    156,790.40x = 216,371.14 × 85,168.92
  4. Step 4: Simplify right side
    156,790.40x = 18,428,096,100.05
  5. Step 5: Solve for x
    x = 18,428,096,100.05/156,790.40
  6. Step 6: Final answer
    x = 117,533.32

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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.