Home / 141,693.54-195,537.09-78,030.78

Finding the Fourth Proportional to 141,693.54, 195,537.09 and 78,030.78

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Solution

The fourth proportional to 141,693.54, 195,537.09 and 78,030.78 is: 107,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,693.54 : 195,537.09 = 78,030.78 : x
  2. Step 2: Convert to fraction form
    141,693.54/195,537.09 = 78,030.78/x
  3. Step 3: Cross multiply
    141,693.54x = 195,537.09 × 78,030.78
  4. Step 4: Simplify right side
    141,693.54x = 15,257,911,651.63
  5. Step 5: Solve for x
    x = 15,257,911,651.63/141,693.54
  6. Step 6: Final answer
    x = 107,682.48

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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.