Home / 156,120.77-215,448.24-84,502.32

Finding the Fourth Proportional to 156,120.77, 215,448.24 and 84,502.32

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Solution

The fourth proportional to 156,120.77, 215,448.24 and 84,502.32 is: 116,614.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,120.77 : 215,448.24 = 84,502.32 : x
  2. Step 2: Convert to fraction form
    156,120.77/215,448.24 = 84,502.32/x
  3. Step 3: Cross multiply
    156,120.77x = 215,448.24 × 84,502.32
  4. Step 4: Simplify right side
    156,120.77x = 18,205,876,119.92
  5. Step 5: Solve for x
    x = 18,205,876,119.92/156,120.77
  6. Step 6: Final answer
    x = 116,614.06

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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.