Home / 149,434.07-206,231.37-85,784.16

Finding the Fourth Proportional to 149,434.07, 206,231.37 and 85,784.16

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Solution

The fourth proportional to 149,434.07, 206,231.37 and 85,784.16 is: 118,389.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,434.07 : 206,231.37 = 85,784.16 : x
  2. Step 2: Convert to fraction form
    149,434.07/206,231.37 = 85,784.16/x
  3. Step 3: Cross multiply
    149,434.07x = 206,231.37 × 85,784.16
  4. Step 4: Simplify right side
    149,434.07x = 17,691,385,292.78
  5. Step 5: Solve for x
    x = 17,691,385,292.78/149,434.07
  6. Step 6: Final answer
    x = 118,389.24

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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.