Home / 165,533.76-248,214.96-81,256.32

Finding the Fourth Proportional to 165,533.76, 248,214.96 and 81,256.32

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Solution

The fourth proportional to 165,533.76, 248,214.96 and 81,256.32 is: 121,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,533.76 : 248,214.96 = 81,256.32 : x
  2. Step 2: Convert to fraction form
    165,533.76/248,214.96 = 81,256.32/x
  3. Step 3: Cross multiply
    165,533.76x = 248,214.96 × 81,256.32
  4. Step 4: Simplify right side
    165,533.76x = 20,169,034,218.55
  5. Step 5: Solve for x
    x = 20,169,034,218.55/165,533.76
  6. Step 6: Final answer
    x = 121,842.42

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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.