Home / 156,187.62-215,539.20-84,568.32

Finding the Fourth Proportional to 156,187.62, 215,539.20 and 84,568.32

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Solution

The fourth proportional to 156,187.62, 215,539.20 and 84,568.32 is: 116,704.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,187.62 : 215,539.20 = 84,568.32 : x
  2. Step 2: Convert to fraction form
    156,187.62/215,539.20 = 84,568.32/x
  3. Step 3: Cross multiply
    156,187.62x = 215,539.20 × 84,568.32
  4. Step 4: Simplify right side
    156,187.62x = 18,227,788,038.14
  5. Step 5: Solve for x
    x = 18,227,788,038.14/156,187.62
  6. Step 6: Final answer
    x = 116,704.44

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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.