Home / 190,085.09-262,288.20-109,496.87

Finding the Fourth Proportional to 190,085.09, 262,288.20 and 109,496.87

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Solution

The fourth proportional to 190,085.09, 262,288.20 and 109,496.87 is: 151,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,085.09 : 262,288.20 = 109,496.87 : x
  2. Step 2: Convert to fraction form
    190,085.09/262,288.20 = 109,496.87/x
  3. Step 3: Cross multiply
    190,085.09x = 262,288.20 × 109,496.87
  4. Step 4: Simplify right side
    190,085.09x = 28,719,736,937.93
  5. Step 5: Solve for x
    x = 28,719,736,937.93/190,085.09
  6. Step 6: Final answer
    x = 151,088.85

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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.