Home / 213,051.60-319,577.40-79,936.20

Finding the Fourth Proportional to 213,051.60, 319,577.40 and 79,936.20

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Solution

The fourth proportional to 213,051.60, 319,577.40 and 79,936.20 is: 119,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,051.60 : 319,577.40 = 79,936.20 : x
  2. Step 2: Convert to fraction form
    213,051.60/319,577.40 = 79,936.20/x
  3. Step 3: Cross multiply
    213,051.60x = 319,577.40 × 79,936.20
  4. Step 4: Simplify right side
    213,051.60x = 25,545,802,961.88
  5. Step 5: Solve for x
    x = 25,545,802,961.88/213,051.60
  6. Step 6: Final answer
    x = 119,904.30

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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.