Home / 235,977.30-325,648.26-128,547

Finding the Fourth Proportional to 235,977.30, 325,648.26 and 128,547

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Solution

The fourth proportional to 235,977.30, 325,648.26 and 128,547 is: 177,394.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,977.30 : 325,648.26 = 128,547 : x
  2. Step 2: Convert to fraction form
    235,977.30/325,648.26 = 128,547/x
  3. Step 3: Cross multiply
    235,977.30x = 325,648.26 × 128,547
  4. Step 4: Simplify right side
    235,977.30x = 41,861,106,878.22
  5. Step 5: Solve for x
    x = 41,861,106,878.22/235,977.30
  6. Step 6: Final answer
    x = 177,394.63

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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.