Home / 235,728.51-325,313.34-128,302.44

Finding the Fourth Proportional to 235,728.51, 325,313.34 and 128,302.44

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Solution

The fourth proportional to 235,728.51, 325,313.34 and 128,302.44 is: 177,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,728.51 : 325,313.34 = 128,302.44 : x
  2. Step 2: Convert to fraction form
    235,728.51/325,313.34 = 128,302.44/x
  3. Step 3: Cross multiply
    235,728.51x = 325,313.34 × 128,302.44
  4. Step 4: Simplify right side
    235,728.51x = 41,738,495,286.55
  5. Step 5: Solve for x
    x = 41,738,495,286.55/235,728.51
  6. Step 6: Final answer
    x = 177,061.72

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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.