Home / 190,124.70-285,079.07-77,673.27

Finding the Fourth Proportional to 190,124.70, 285,079.07 and 77,673.27

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Solution

The fourth proportional to 190,124.70, 285,079.07 and 77,673.27 is: 116,465.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,124.70 : 285,079.07 = 77,673.27 : x
  2. Step 2: Convert to fraction form
    190,124.70/285,079.07 = 77,673.27/x
  3. Step 3: Cross multiply
    190,124.70x = 285,079.07 × 77,673.27
  4. Step 4: Simplify right side
    190,124.70x = 22,143,021,761.70
  5. Step 5: Solve for x
    x = 22,143,021,761.70/190,124.70
  6. Step 6: Final answer
    x = 116,465.78

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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.