Home / 235,837.85-325,462.06-128,413.76

Finding the Fourth Proportional to 235,837.85, 325,462.06 and 128,413.76

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Solution

The fourth proportional to 235,837.85, 325,462.06 and 128,413.76 is: 177,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,837.85 : 325,462.06 = 128,413.76 : x
  2. Step 2: Convert to fraction form
    235,837.85/325,462.06 = 128,413.76/x
  3. Step 3: Cross multiply
    235,837.85x = 325,462.06 × 128,413.76
  4. Step 4: Simplify right side
    235,837.85x = 41,793,804,913.60
  5. Step 5: Solve for x
    x = 41,793,804,913.60/235,837.85
  6. Step 6: Final answer
    x = 177,214.16

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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.