Home / 235,787.26-325,386.45-128,358.10

Finding the Fourth Proportional to 235,787.26, 325,386.45 and 128,358.10

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Solution

The fourth proportional to 235,787.26, 325,386.45 and 128,358.10 is: 177,134.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,787.26 : 325,386.45 = 128,358.10 : x
  2. Step 2: Convert to fraction form
    235,787.26/325,386.45 = 128,358.10/x
  3. Step 3: Cross multiply
    235,787.26x = 325,386.45 × 128,358.10
  4. Step 4: Simplify right side
    235,787.26x = 41,765,986,487.75
  5. Step 5: Solve for x
    x = 41,765,986,487.75/235,787.26
  6. Step 6: Final answer
    x = 177,134.19

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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.