Home / 138,204.60-190,626.91-84,516.03

Finding the Fourth Proportional to 138,204.60, 190,626.91 and 84,516.03

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Solution

The fourth proportional to 138,204.60, 190,626.91 and 84,516.03 is: 116,573.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,204.60 : 190,626.91 = 84,516.03 : x
  2. Step 2: Convert to fraction form
    138,204.60/190,626.91 = 84,516.03/x
  3. Step 3: Cross multiply
    138,204.60x = 190,626.91 × 84,516.03
  4. Step 4: Simplify right side
    138,204.60x = 16,111,029,644.37
  5. Step 5: Solve for x
    x = 16,111,029,644.37/138,204.60
  6. Step 6: Final answer
    x = 116,573.76

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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.