Home / 135,901.76-187,546.97-75,478.07

Finding the Fourth Proportional to 135,901.76, 187,546.97 and 75,478.07

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Solution

The fourth proportional to 135,901.76, 187,546.97 and 75,478.07 is: 104,161.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,901.76 : 187,546.97 = 75,478.07 : x
  2. Step 2: Convert to fraction form
    135,901.76/187,546.97 = 75,478.07/x
  3. Step 3: Cross multiply
    135,901.76x = 187,546.97 × 75,478.07
  4. Step 4: Simplify right side
    135,901.76x = 14,155,682,014.82
  5. Step 5: Solve for x
    x = 14,155,682,014.82/135,901.76
  6. Step 6: Final answer
    x = 104,161.14

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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.