Home / 156,314.30-215,699.18-88,336.48

Finding the Fourth Proportional to 156,314.30, 215,699.18 and 88,336.48

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Solution

The fourth proportional to 156,314.30, 215,699.18 and 88,336.48 is: 121,896.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,314.30 : 215,699.18 = 88,336.48 : x
  2. Step 2: Convert to fraction form
    156,314.30/215,699.18 = 88,336.48/x
  3. Step 3: Cross multiply
    156,314.30x = 215,699.18 × 88,336.48
  4. Step 4: Simplify right side
    156,314.30x = 19,054,106,300.09
  5. Step 5: Solve for x
    x = 19,054,106,300.09/156,314.30
  6. Step 6: Final answer
    x = 121,896.12

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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.