Home / 140,992.90-194,577.33-77,336.62

Finding the Fourth Proportional to 140,992.90, 194,577.33 and 77,336.62

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Solution

The fourth proportional to 140,992.90, 194,577.33 and 77,336.62 is: 106,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,992.90 : 194,577.33 = 77,336.62 : x
  2. Step 2: Convert to fraction form
    140,992.90/194,577.33 = 77,336.62/x
  3. Step 3: Cross multiply
    140,992.90x = 194,577.33 × 77,336.62
  4. Step 4: Simplify right side
    140,992.90x = 15,047,953,030.82
  5. Step 5: Solve for x
    x = 15,047,953,030.82/140,992.90
  6. Step 6: Final answer
    x = 106,728.45

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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.