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Finding the Fourth Proportional to 213,796.80, 295,070.88 and 123,135.12

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Solution

The fourth proportional to 213,796.80, 295,070.88 and 123,135.12 is: 169,944.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,796.80 : 295,070.88 = 123,135.12 : x
  2. Step 2: Convert to fraction form
    213,796.80/295,070.88 = 123,135.12/x
  3. Step 3: Cross multiply
    213,796.80x = 295,070.88 × 123,135.12
  4. Step 4: Simplify right side
    213,796.80x = 36,333,588,679.06
  5. Step 5: Solve for x
    x = 36,333,588,679.06/213,796.80
  6. Step 6: Final answer
    x = 169,944.49

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1.5x scale

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.