Home / 156,013.26-215,293.23-98,683.89

Finding the Fourth Proportional to 156,013.26, 215,293.23 and 98,683.89

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Solution

The fourth proportional to 156,013.26, 215,293.23 and 98,683.89 is: 136,180.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,013.26 : 215,293.23 = 98,683.89 : x
  2. Step 2: Convert to fraction form
    156,013.26/215,293.23 = 98,683.89/x
  3. Step 3: Cross multiply
    156,013.26x = 215,293.23 × 98,683.89
  4. Step 4: Simplify right side
    156,013.26x = 21,245,973,427.06
  5. Step 5: Solve for x
    x = 21,245,973,427.06/156,013.26
  6. Step 6: Final answer
    x = 136,180.56

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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.