Home / 190,733.28-286,105.92-90,904.32

Finding the Fourth Proportional to 190,733.28, 286,105.92 and 90,904.32

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Solution

The fourth proportional to 190,733.28, 286,105.92 and 90,904.32 is: 136,359.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,733.28 : 286,105.92 = 90,904.32 : x
  2. Step 2: Convert to fraction form
    190,733.28/286,105.92 = 90,904.32/x
  3. Step 3: Cross multiply
    190,733.28x = 286,105.92 × 90,904.32
  4. Step 4: Simplify right side
    190,733.28x = 26,008,264,105.57
  5. Step 5: Solve for x
    x = 26,008,264,105.57/190,733.28
  6. Step 6: Final answer
    x = 136,359.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.