Home / 156,201.16-215,557.32-84,581.32

Finding the Fourth Proportional to 156,201.16, 215,557.32 and 84,581.32

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Solution

The fourth proportional to 156,201.16, 215,557.32 and 84,581.32 is: 116,722.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,201.16 : 215,557.32 = 84,581.32 : x
  2. Step 2: Convert to fraction form
    156,201.16/215,557.32 = 84,581.32/x
  3. Step 3: Cross multiply
    156,201.16x = 215,557.32 × 84,581.32
  4. Step 4: Simplify right side
    156,201.16x = 18,232,122,661.26
  5. Step 5: Solve for x
    x = 18,232,122,661.26/156,201.16
  6. Step 6: Final answer
    x = 116,722.07

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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.