Home / 235,837.72-325,461.89-128,413.63

Finding the Fourth Proportional to 235,837.72, 325,461.89 and 128,413.63

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Solution

The fourth proportional to 235,837.72, 325,461.89 and 128,413.63 is: 177,213.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,837.72 : 325,461.89 = 128,413.63 : x
  2. Step 2: Convert to fraction form
    235,837.72/325,461.89 = 128,413.63/x
  3. Step 3: Cross multiply
    235,837.72x = 325,461.89 × 128,413.63
  4. Step 4: Simplify right side
    235,837.72x = 41,793,742,721.56
  5. Step 5: Solve for x
    x = 41,793,742,721.56/235,837.72
  6. Step 6: Final answer
    x = 177,213.99

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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.