Home / 135,621.14-187,156.83-75,190.22

Finding the Fourth Proportional to 135,621.14, 187,156.83 and 75,190.22

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Solution

The fourth proportional to 135,621.14, 187,156.83 and 75,190.22 is: 103,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,621.14 : 187,156.83 = 75,190.22 : x
  2. Step 2: Convert to fraction form
    135,621.14/187,156.83 = 75,190.22/x
  3. Step 3: Cross multiply
    135,621.14x = 187,156.83 × 75,190.22
  4. Step 4: Simplify right side
    135,621.14x = 14,072,363,222.20
  5. Step 5: Solve for x
    x = 14,072,363,222.20/135,621.14
  6. Step 6: Final answer
    x = 103,762.31

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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.