Home / 131,347.30-181,136.25-104,578.18

Finding the Fourth Proportional to 131,347.30, 181,136.25 and 104,578.18

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Solution

The fourth proportional to 131,347.30, 181,136.25 and 104,578.18 is: 144,219.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,347.30 : 181,136.25 = 104,578.18 : x
  2. Step 2: Convert to fraction form
    131,347.30/181,136.25 = 104,578.18/x
  3. Step 3: Cross multiply
    131,347.30x = 181,136.25 × 104,578.18
  4. Step 4: Simplify right side
    131,347.30x = 18,942,899,357.03
  5. Step 5: Solve for x
    x = 18,942,899,357.03/131,347.30
  6. Step 6: Final answer
    x = 144,219.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.