Home / 223,968.07-309,071.30-121,995.35

Finding the Fourth Proportional to 223,968.07, 309,071.30 and 121,995.35

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Solution

The fourth proportional to 223,968.07, 309,071.30 and 121,995.35 is: 168,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,968.07 : 309,071.30 = 121,995.35 : x
  2. Step 2: Convert to fraction form
    223,968.07/309,071.30 = 121,995.35/x
  3. Step 3: Cross multiply
    223,968.07x = 309,071.30 × 121,995.35
  4. Step 4: Simplify right side
    223,968.07x = 37,705,260,422.14
  5. Step 5: Solve for x
    x = 37,705,260,422.14/223,968.07
  6. Step 6: Final answer
    x = 168,351.05

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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.