Home / 134,588.56-185,532.96-86,185.12

Finding the Fourth Proportional to 134,588.56, 185,532.96 and 86,185.12

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Solution

The fourth proportional to 134,588.56, 185,532.96 and 86,185.12 is: 118,807.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,588.56 : 185,532.96 = 86,185.12 : x
  2. Step 2: Convert to fraction form
    134,588.56/185,532.96 = 86,185.12/x
  3. Step 3: Cross multiply
    134,588.56x = 185,532.96 × 86,185.12
  4. Step 4: Simplify right side
    134,588.56x = 15,990,180,421.56
  5. Step 5: Solve for x
    x = 15,990,180,421.56/134,588.56
  6. Step 6: Final answer
    x = 118,807.87

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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.