Home / 156,313.52-215,699.52-88,336.40

Finding the Fourth Proportional to 156,313.52, 215,699.52 and 88,336.40

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Solution

The fourth proportional to 156,313.52, 215,699.52 and 88,336.40 is: 121,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,313.52 : 215,699.52 = 88,336.40 : x
  2. Step 2: Convert to fraction form
    156,313.52/215,699.52 = 88,336.40/x
  3. Step 3: Cross multiply
    156,313.52x = 215,699.52 × 88,336.40
  4. Step 4: Simplify right side
    156,313.52x = 19,054,119,078.53
  5. Step 5: Solve for x
    x = 19,054,119,078.53/156,313.52
  6. Step 6: Final answer
    x = 121,896.81

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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.