Home / 235,829.07-325,435.62-128,396.64

Finding the Fourth Proportional to 235,829.07, 325,435.62 and 128,396.64

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Solution

The fourth proportional to 235,829.07, 325,435.62 and 128,396.64 is: 177,182.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,829.07 : 325,435.62 = 128,396.64 : x
  2. Step 2: Convert to fraction form
    235,829.07/325,435.62 = 128,396.64/x
  3. Step 3: Cross multiply
    235,829.07x = 325,435.62 × 128,396.64
  4. Step 4: Simplify right side
    235,829.07x = 41,784,841,846.19
  5. Step 5: Solve for x
    x = 41,784,841,846.19/235,829.07
  6. Step 6: Final answer
    x = 177,182.74

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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.