Home / 156,218.48-215,581.17-84,598.28

Finding the Fourth Proportional to 156,218.48, 215,581.17 and 84,598.28

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Solution

The fourth proportional to 156,218.48, 215,581.17 and 84,598.28 is: 116,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,218.48 : 215,581.17 = 84,598.28 : x
  2. Step 2: Convert to fraction form
    156,218.48/215,581.17 = 84,598.28/x
  3. Step 3: Cross multiply
    156,218.48x = 215,581.17 × 84,598.28
  4. Step 4: Simplify right side
    156,218.48x = 18,237,796,182.39
  5. Step 5: Solve for x
    x = 18,237,796,182.39/156,218.48
  6. Step 6: Final answer
    x = 116,745.45

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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.