Home / 265,965.40-398,966.10-108,196.60

Finding the Fourth Proportional to 265,965.40, 398,966.10 and 108,196.60

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Solution

The fourth proportional to 265,965.40, 398,966.10 and 108,196.60 is: 162,302.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,965.40 : 398,966.10 = 108,196.60 : x
  2. Step 2: Convert to fraction form
    265,965.40/398,966.10 = 108,196.60/x
  3. Step 3: Cross multiply
    265,965.40x = 398,966.10 × 108,196.60
  4. Step 4: Simplify right side
    265,965.40x = 43,166,775,535.26
  5. Step 5: Solve for x
    x = 43,166,775,535.26/265,965.40
  6. Step 6: Final answer
    x = 162,302.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.