Home / 154,078.40-212,693.66-93,668.33

Finding the Fourth Proportional to 154,078.40, 212,693.66 and 93,668.33

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Solution

The fourth proportional to 154,078.40, 212,693.66 and 93,668.33 is: 129,302.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,078.40 : 212,693.66 = 93,668.33 : x
  2. Step 2: Convert to fraction form
    154,078.40/212,693.66 = 93,668.33/x
  3. Step 3: Cross multiply
    154,078.40x = 212,693.66 × 93,668.33
  4. Step 4: Simplify right side
    154,078.40x = 19,922,658,401.98
  5. Step 5: Solve for x
    x = 19,922,658,401.98/154,078.40
  6. Step 6: Final answer
    x = 129,302.09

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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.