Home / 135,589.64-187,050.42-85,316.36

Finding the Fourth Proportional to 135,589.64, 187,050.42 and 85,316.36

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Solution

The fourth proportional to 135,589.64, 187,050.42 and 85,316.36 is: 117,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,589.64 : 187,050.42 = 85,316.36 : x
  2. Step 2: Convert to fraction form
    135,589.64/187,050.42 = 85,316.36/x
  3. Step 3: Cross multiply
    135,589.64x = 187,050.42 × 85,316.36
  4. Step 4: Simplify right side
    135,589.64x = 15,958,460,970.87
  5. Step 5: Solve for x
    x = 15,958,460,970.87/135,589.64
  6. Step 6: Final answer
    x = 117,696.76

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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.