Home / 188,659.26-260,386.74-108,140.70

Finding the Fourth Proportional to 188,659.26, 260,386.74 and 108,140.70

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Solution

The fourth proportional to 188,659.26, 260,386.74 and 108,140.70 is: 149,255.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,659.26 : 260,386.74 = 108,140.70 : x
  2. Step 2: Convert to fraction form
    188,659.26/260,386.74 = 108,140.70/x
  3. Step 3: Cross multiply
    188,659.26x = 260,386.74 × 108,140.70
  4. Step 4: Simplify right side
    188,659.26x = 28,158,404,334.32
  5. Step 5: Solve for x
    x = 28,158,404,334.32/188,659.26
  6. Step 6: Final answer
    x = 149,255.35

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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.