Home / 190,669.33-285,891.85-72,348.98

Finding the Fourth Proportional to 190,669.33, 285,891.85 and 72,348.98

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Solution

The fourth proportional to 190,669.33, 285,891.85 and 72,348.98 is: 108,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,669.33 : 285,891.85 = 72,348.98 : x
  2. Step 2: Convert to fraction form
    190,669.33/285,891.85 = 72,348.98/x
  3. Step 3: Cross multiply
    190,669.33x = 285,891.85 × 72,348.98
  4. Step 4: Simplify right side
    190,669.33x = 20,683,984,271.67
  5. Step 5: Solve for x
    x = 20,683,984,271.67/190,669.33
  6. Step 6: Final answer
    x = 108,480.92

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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.