Home / 190,949.80-286,466.01-72,623.38

Finding the Fourth Proportional to 190,949.80, 286,466.01 and 72,623.38

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Solution

The fourth proportional to 190,949.80, 286,466.01 and 72,623.38 is: 108,950.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,949.80 : 286,466.01 = 72,623.38 : x
  2. Step 2: Convert to fraction form
    190,949.80/286,466.01 = 72,623.38/x
  3. Step 3: Cross multiply
    190,949.80x = 286,466.01 × 72,623.38
  4. Step 4: Simplify right side
    190,949.80x = 20,804,129,901.31
  5. Step 5: Solve for x
    x = 20,804,129,901.31/190,949.80
  6. Step 6: Final answer
    x = 108,950.78

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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.