Home / 149,407.84-224,243.23-78,381.23

Finding the Fourth Proportional to 149,407.84, 224,243.23 and 78,381.23

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Solution

The fourth proportional to 149,407.84, 224,243.23 and 78,381.23 is: 117,640.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,407.84 : 224,243.23 = 78,381.23 : x
  2. Step 2: Convert to fraction form
    149,407.84/224,243.23 = 78,381.23/x
  3. Step 3: Cross multiply
    149,407.84x = 224,243.23 × 78,381.23
  4. Step 4: Simplify right side
    149,407.84x = 17,576,458,673.45
  5. Step 5: Solve for x
    x = 17,576,458,673.45/149,407.84
  6. Step 6: Final answer
    x = 117,640.81

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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.