Home / 190,125.70-285,080.56-77,674.27

Finding the Fourth Proportional to 190,125.70, 285,080.56 and 77,674.27

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Solution

The fourth proportional to 190,125.70, 285,080.56 and 77,674.27 is: 116,467.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,125.70 : 285,080.56 = 77,674.27 : x
  2. Step 2: Convert to fraction form
    190,125.70/285,080.56 = 77,674.27/x
  3. Step 3: Cross multiply
    190,125.70x = 285,080.56 × 77,674.27
  4. Step 4: Simplify right side
    190,125.70x = 22,143,424,389.19
  5. Step 5: Solve for x
    x = 22,143,424,389.19/190,125.70
  6. Step 6: Final answer
    x = 116,467.29

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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.