Home / 190,695.13-285,688.78-136,548.05

Finding the Fourth Proportional to 190,695.13, 285,688.78 and 136,548.05

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Solution

The fourth proportional to 190,695.13, 285,688.78 and 136,548.05 is: 204,568.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,695.13 : 285,688.78 = 136,548.05 : x
  2. Step 2: Convert to fraction form
    190,695.13/285,688.78 = 136,548.05/x
  3. Step 3: Cross multiply
    190,695.13x = 285,688.78 × 136,548.05
  4. Step 4: Simplify right side
    190,695.13x = 39,010,244,046.07
  5. Step 5: Solve for x
    x = 39,010,244,046.07/190,695.13
  6. Step 6: Final answer
    x = 204,568.65

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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.