Home / 235,733.33-325,311-128,303.48

Finding the Fourth Proportional to 235,733.33, 325,311 and 128,303.48

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Solution

The fourth proportional to 235,733.33, 325,311 and 128,303.48 is: 177,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,733.33 : 325,311 = 128,303.48 : x
  2. Step 2: Convert to fraction form
    235,733.33/325,311 = 128,303.48/x
  3. Step 3: Cross multiply
    235,733.33x = 325,311 × 128,303.48
  4. Step 4: Simplify right side
    235,733.33x = 41,738,533,382.28
  5. Step 5: Solve for x
    x = 41,738,533,382.28/235,733.33
  6. Step 6: Final answer
    x = 177,058.26

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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.