Home / 136,243.55-188,013.76-75,812.49

Finding the Fourth Proportional to 136,243.55, 188,013.76 and 75,812.49

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Solution

The fourth proportional to 136,243.55, 188,013.76 and 75,812.49 is: 104,619.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,243.55 : 188,013.76 = 75,812.49 : x
  2. Step 2: Convert to fraction form
    136,243.55/188,013.76 = 75,812.49/x
  3. Step 3: Cross multiply
    136,243.55x = 188,013.76 × 75,812.49
  4. Step 4: Simplify right side
    136,243.55x = 14,253,791,110.33
  5. Step 5: Solve for x
    x = 14,253,791,110.33/136,243.55
  6. Step 6: Final answer
    x = 104,619.93

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1.5x scale

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.