Home / 156,107.23-215,427.62-84,487.32

Finding the Fourth Proportional to 156,107.23, 215,427.62 and 84,487.32

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Solution

The fourth proportional to 156,107.23, 215,427.62 and 84,487.32 is: 116,592.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,107.23 : 215,427.62 = 84,487.32 : x
  2. Step 2: Convert to fraction form
    156,107.23/215,427.62 = 84,487.32/x
  3. Step 3: Cross multiply
    156,107.23x = 215,427.62 × 84,487.32
  4. Step 4: Simplify right side
    156,107.23x = 18,200,902,479.00
  5. Step 5: Solve for x
    x = 18,200,902,479.00/156,107.23
  6. Step 6: Final answer
    x = 116,592.31

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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.