Home / 156,302.88-215,685.21-91,765.32

Finding the Fourth Proportional to 156,302.88, 215,685.21 and 91,765.32

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Solution

The fourth proportional to 156,302.88, 215,685.21 and 91,765.32 is: 126,628.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,302.88 : 215,685.21 = 91,765.32 : x
  2. Step 2: Convert to fraction form
    156,302.88/215,685.21 = 91,765.32/x
  3. Step 3: Cross multiply
    156,302.88x = 215,685.21 × 91,765.32
  4. Step 4: Simplify right side
    156,302.88x = 19,792,422,314.92
  5. Step 5: Solve for x
    x = 19,792,422,314.92/156,302.88
  6. Step 6: Final answer
    x = 126,628.65

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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.