Home / 156,300.30-215,694.63-84,680.32

Finding the Fourth Proportional to 156,300.30, 215,694.63 and 84,680.32

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Solution

The fourth proportional to 156,300.30, 215,694.63 and 84,680.32 is: 116,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,300.30 : 215,694.63 = 84,680.32 : x
  2. Step 2: Convert to fraction form
    156,300.30/215,694.63 = 84,680.32/x
  3. Step 3: Cross multiply
    156,300.30x = 215,694.63 × 84,680.32
  4. Step 4: Simplify right side
    156,300.30x = 18,265,089,867.28
  5. Step 5: Solve for x
    x = 18,265,089,867.28/156,300.30
  6. Step 6: Final answer
    x = 116,858.96

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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.