Home / 136,585.26-188,420.76-91,274.40

Finding the Fourth Proportional to 136,585.26, 188,420.76 and 91,274.40

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Solution

The fourth proportional to 136,585.26, 188,420.76 and 91,274.40 is: 125,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,585.26 : 188,420.76 = 91,274.40 : x
  2. Step 2: Convert to fraction form
    136,585.26/188,420.76 = 91,274.40/x
  3. Step 3: Cross multiply
    136,585.26x = 188,420.76 × 91,274.40
  4. Step 4: Simplify right side
    136,585.26x = 17,197,991,816.54
  5. Step 5: Solve for x
    x = 17,197,991,816.54/136,585.26
  6. Step 6: Final answer
    x = 125,913.97

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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.