Home / 156,541.57-216,027.78-84,921.60

Finding the Fourth Proportional to 156,541.57, 216,027.78 and 84,921.60

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Solution

The fourth proportional to 156,541.57, 216,027.78 and 84,921.60 is: 117,192.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,541.57 : 216,027.78 = 84,921.60 : x
  2. Step 2: Convert to fraction form
    156,541.57/216,027.78 = 84,921.60/x
  3. Step 3: Cross multiply
    156,541.57x = 216,027.78 × 84,921.60
  4. Step 4: Simplify right side
    156,541.57x = 18,345,424,722.05
  5. Step 5: Solve for x
    x = 18,345,424,722.05/156,541.57
  6. Step 6: Final answer
    x = 117,192.03

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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.