Home / 156,240.71-215,613.33-84,621.32

Finding the Fourth Proportional to 156,240.71, 215,613.33 and 84,621.32

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Solution

The fourth proportional to 156,240.71, 215,613.33 and 84,621.32 is: 116,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,240.71 : 215,613.33 = 84,621.32 : x
  2. Step 2: Convert to fraction form
    156,240.71/215,613.33 = 84,621.32/x
  3. Step 3: Cross multiply
    156,240.71x = 215,613.33 × 84,621.32
  4. Step 4: Simplify right side
    156,240.71x = 18,245,485,133.23
  5. Step 5: Solve for x
    x = 18,245,485,133.23/156,240.71
  6. Step 6: Final answer
    x = 116,778.05

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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.