Home / 235,708.03-325,270.85-128,275.76

Finding the Fourth Proportional to 235,708.03, 325,270.85 and 128,275.76

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Solution

The fourth proportional to 235,708.03, 325,270.85 and 128,275.76 is: 177,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,708.03 : 325,270.85 = 128,275.76 : x
  2. Step 2: Convert to fraction form
    235,708.03/325,270.85 = 128,275.76/x
  3. Step 3: Cross multiply
    235,708.03x = 325,270.85 × 128,275.76
  4. Step 4: Simplify right side
    235,708.03x = 41,724,365,661.39
  5. Step 5: Solve for x
    x = 41,724,365,661.39/235,708.03
  6. Step 6: Final answer
    x = 177,017.16

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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.