Home / 145,266.33-217,912.05-40,085.30

Finding the Fourth Proportional to 145,266.33, 217,912.05 and 40,085.30

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Solution

The fourth proportional to 145,266.33, 217,912.05 and 40,085.30 is: 60,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,266.33 : 217,912.05 = 40,085.30 : x
  2. Step 2: Convert to fraction form
    145,266.33/217,912.05 = 40,085.30/x
  3. Step 3: Cross multiply
    145,266.33x = 217,912.05 × 40,085.30
  4. Step 4: Simplify right side
    145,266.33x = 8,735,069,897.87
  5. Step 5: Solve for x
    x = 8,735,069,897.87/145,266.33
  6. Step 6: Final answer
    x = 60,131.41

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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.