Home / 135,560.87-187,074.01-75,135.41

Finding the Fourth Proportional to 135,560.87, 187,074.01 and 75,135.41

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Solution

The fourth proportional to 135,560.87, 187,074.01 and 75,135.41 is: 103,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,560.87 : 187,074.01 = 75,135.41 : x
  2. Step 2: Convert to fraction form
    135,560.87/187,074.01 = 75,135.41/x
  3. Step 3: Cross multiply
    135,560.87x = 187,074.01 × 75,135.41
  4. Step 4: Simplify right side
    135,560.87x = 14,055,881,130.65
  5. Step 5: Solve for x
    x = 14,055,881,130.65/135,560.87
  6. Step 6: Final answer
    x = 103,686.87

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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.