Home / 143,187.58-214,782.16-48,418.40

Finding the Fourth Proportional to 143,187.58, 214,782.16 and 48,418.40

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Solution

The fourth proportional to 143,187.58, 214,782.16 and 48,418.40 is: 72,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,187.58 : 214,782.16 = 48,418.40 : x
  2. Step 2: Convert to fraction form
    143,187.58/214,782.16 = 48,418.40/x
  3. Step 3: Cross multiply
    143,187.58x = 214,782.16 × 48,418.40
  4. Step 4: Simplify right side
    143,187.58x = 10,399,408,535.74
  5. Step 5: Solve for x
    x = 10,399,408,535.74/143,187.58
  6. Step 6: Final answer
    x = 72,627.87

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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.