Home / 136,615.66-188,543.17-102,100.45

Finding the Fourth Proportional to 136,615.66, 188,543.17 and 102,100.45

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Solution

The fourth proportional to 136,615.66, 188,543.17 and 102,100.45 is: 140,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,615.66 : 188,543.17 = 102,100.45 : x
  2. Step 2: Convert to fraction form
    136,615.66/188,543.17 = 102,100.45/x
  3. Step 3: Cross multiply
    136,615.66x = 188,543.17 × 102,100.45
  4. Step 4: Simplify right side
    136,615.66x = 19,250,342,224.06
  5. Step 5: Solve for x
    x = 19,250,342,224.06/136,615.66
  6. Step 6: Final answer
    x = 140,908.75

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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.