Home / 143,148.87-197,544.42-79,486.52

Finding the Fourth Proportional to 143,148.87, 197,544.42 and 79,486.52

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Solution

The fourth proportional to 143,148.87, 197,544.42 and 79,486.52 is: 109,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,148.87 : 197,544.42 = 79,486.52 : x
  2. Step 2: Convert to fraction form
    143,148.87/197,544.42 = 79,486.52/x
  3. Step 3: Cross multiply
    143,148.87x = 197,544.42 × 79,486.52
  4. Step 4: Simplify right side
    143,148.87x = 15,702,117,503.50
  5. Step 5: Solve for x
    x = 15,702,117,503.50/143,148.87
  6. Step 6: Final answer
    x = 109,690.82

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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.