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Finding the Fourth Proportional to 165,899.80, 248,460.90 and 102,914.20

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Solution

The fourth proportional to 165,899.80, 248,460.90 and 102,914.20 is: 154,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,899.80 : 248,460.90 = 102,914.20 : x
  2. Step 2: Convert to fraction form
    165,899.80/248,460.90 = 102,914.20/x
  3. Step 3: Cross multiply
    165,899.80x = 248,460.90 × 102,914.20
  4. Step 4: Simplify right side
    165,899.80x = 25,570,154,754.78
  5. Step 5: Solve for x
    x = 25,570,154,754.78/165,899.80
  6. Step 6: Final answer
    x = 154,130.11

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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.