Home / 223,174.89-307,980.36-121,199.55

Finding the Fourth Proportional to 223,174.89, 307,980.36 and 121,199.55

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Solution

The fourth proportional to 223,174.89, 307,980.36 and 121,199.55 is: 167,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,174.89 : 307,980.36 = 121,199.55 : x
  2. Step 2: Convert to fraction form
    223,174.89/307,980.36 = 121,199.55/x
  3. Step 3: Cross multiply
    223,174.89x = 307,980.36 × 121,199.55
  4. Step 4: Simplify right side
    223,174.89x = 37,327,081,040.84
  5. Step 5: Solve for x
    x = 37,327,081,040.84/223,174.89
  6. Step 6: Final answer
    x = 167,254.84

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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.