Home / 156,180.66-215,516.04-91,643.22

Finding the Fourth Proportional to 156,180.66, 215,516.04 and 91,643.22

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Solution

The fourth proportional to 156,180.66, 215,516.04 and 91,643.22 is: 126,459.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,180.66 : 215,516.04 = 91,643.22 : x
  2. Step 2: Convert to fraction form
    156,180.66/215,516.04 = 91,643.22/x
  3. Step 3: Cross multiply
    156,180.66x = 215,516.04 × 91,643.22
  4. Step 4: Simplify right side
    156,180.66x = 19,750,583,867.25
  5. Step 5: Solve for x
    x = 19,750,583,867.25/156,180.66
  6. Step 6: Final answer
    x = 126,459.86

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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.