Home / 142,040.82-196,017.27-77,514.60

Finding the Fourth Proportional to 142,040.82, 196,017.27 and 77,514.60

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Solution

The fourth proportional to 142,040.82, 196,017.27 and 77,514.60 is: 106,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,040.82 : 196,017.27 = 77,514.60 : x
  2. Step 2: Convert to fraction form
    142,040.82/196,017.27 = 77,514.60/x
  3. Step 3: Cross multiply
    142,040.82x = 196,017.27 × 77,514.60
  4. Step 4: Simplify right side
    142,040.82x = 15,194,200,277.14
  5. Step 5: Solve for x
    x = 15,194,200,277.14/142,040.82
  6. Step 6: Final answer
    x = 106,970.66

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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.