Home / 144,938.64-217,408.60-39,758.80

Finding the Fourth Proportional to 144,938.64, 217,408.60 and 39,758.80

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Solution

The fourth proportional to 144,938.64, 217,408.60 and 39,758.80 is: 59,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,938.64 : 217,408.60 = 39,758.80 : x
  2. Step 2: Convert to fraction form
    144,938.64/217,408.60 = 39,758.80/x
  3. Step 3: Cross multiply
    144,938.64x = 217,408.60 × 39,758.80
  4. Step 4: Simplify right side
    144,938.64x = 8,643,905,045.68
  5. Step 5: Solve for x
    x = 8,643,905,045.68/144,938.64
  6. Step 6: Final answer
    x = 59,638.38

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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.