Home / 156,217.48-215,579.79-84,597.28

Finding the Fourth Proportional to 156,217.48, 215,579.79 and 84,597.28

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Solution

The fourth proportional to 156,217.48, 215,579.79 and 84,597.28 is: 116,744.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,217.48 : 215,579.79 = 84,597.28 : x
  2. Step 2: Convert to fraction form
    156,217.48/215,579.79 = 84,597.28/x
  3. Step 3: Cross multiply
    156,217.48x = 215,579.79 × 84,597.28
  4. Step 4: Simplify right side
    156,217.48x = 18,237,463,318.02
  5. Step 5: Solve for x
    x = 18,237,463,318.02/156,217.48
  6. Step 6: Final answer
    x = 116,744.06

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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.