Home / 190,447.90-285,707.96-76,604.42

Finding the Fourth Proportional to 190,447.90, 285,707.96 and 76,604.42

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Solution

The fourth proportional to 190,447.90, 285,707.96 and 76,604.42 is: 114,921.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,447.90 : 285,707.96 = 76,604.42 : x
  2. Step 2: Convert to fraction form
    190,447.90/285,707.96 = 76,604.42/x
  3. Step 3: Cross multiply
    190,447.90x = 285,707.96 × 76,604.42
  4. Step 4: Simplify right side
    190,447.90x = 21,886,492,565.18
  5. Step 5: Solve for x
    x = 21,886,492,565.18/190,447.90
  6. Step 6: Final answer
    x = 114,921.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.