Home / 156,089.67-215,405.26-84,471.18

Finding the Fourth Proportional to 156,089.67, 215,405.26 and 84,471.18

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Solution

The fourth proportional to 156,089.67, 215,405.26 and 84,471.18 is: 116,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,089.67 : 215,405.26 = 84,471.18 : x
  2. Step 2: Convert to fraction form
    156,089.67/215,405.26 = 84,471.18/x
  3. Step 3: Cross multiply
    156,089.67x = 215,405.26 × 84,471.18
  4. Step 4: Simplify right side
    156,089.67x = 18,195,536,490.41
  5. Step 5: Solve for x
    x = 18,195,536,490.41/156,089.67
  6. Step 6: Final answer
    x = 116,571.05

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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.