Home / 165,628.80-248,443.20-109,641.60

Finding the Fourth Proportional to 165,628.80, 248,443.20 and 109,641.60

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Solution

The fourth proportional to 165,628.80, 248,443.20 and 109,641.60 is: 164,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,628.80 : 248,443.20 = 109,641.60 : x
  2. Step 2: Convert to fraction form
    165,628.80/248,443.20 = 109,641.60/x
  3. Step 3: Cross multiply
    165,628.80x = 248,443.20 × 109,641.60
  4. Step 4: Simplify right side
    165,628.80x = 27,239,709,957.12
  5. Step 5: Solve for x
    x = 27,239,709,957.12/165,628.80
  6. Step 6: Final answer
    x = 164,462.40

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1.5x scale

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.