Home / 156,054.81-215,354.10-84,433.26

Finding the Fourth Proportional to 156,054.81, 215,354.10 and 84,433.26

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Solution

The fourth proportional to 156,054.81, 215,354.10 and 84,433.26 is: 116,517.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,054.81 : 215,354.10 = 84,433.26 : x
  2. Step 2: Convert to fraction form
    156,054.81/215,354.10 = 84,433.26/x
  3. Step 3: Cross multiply
    156,054.81x = 215,354.10 × 84,433.26
  4. Step 4: Simplify right side
    156,054.81x = 18,183,047,640.60
  5. Step 5: Solve for x
    x = 18,183,047,640.60/156,054.81
  6. Step 6: Final answer
    x = 116,517.06

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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.