Home / 223,095.90-307,872.74-121,121.50

Finding the Fourth Proportional to 223,095.90, 307,872.74 and 121,121.50

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Solution

The fourth proportional to 223,095.90, 307,872.74 and 121,121.50 is: 167,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,095.90 : 307,872.74 = 121,121.50 : x
  2. Step 2: Convert to fraction form
    223,095.90/307,872.74 = 121,121.50/x
  3. Step 3: Cross multiply
    223,095.90x = 307,872.74 × 121,121.50
  4. Step 4: Simplify right side
    223,095.90x = 37,290,008,077.91
  5. Step 5: Solve for x
    x = 37,290,008,077.91/223,095.90
  6. Step 6: Final answer
    x = 167,147.89

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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.