Home / 235,790.26-325,390.60-128,361.10

Finding the Fourth Proportional to 235,790.26, 325,390.60 and 128,361.10

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Solution

The fourth proportional to 235,790.26, 325,390.60 and 128,361.10 is: 177,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,790.26 : 325,390.60 = 128,361.10 : x
  2. Step 2: Convert to fraction form
    235,790.26/325,390.60 = 128,361.10/x
  3. Step 3: Cross multiply
    235,790.26x = 325,390.60 × 128,361.10
  4. Step 4: Simplify right side
    235,790.26x = 41,767,495,345.66
  5. Step 5: Solve for x
    x = 41,767,495,345.66/235,790.26
  6. Step 6: Final answer
    x = 177,138.34

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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.