Home / 99,811.05-149,763.33-43,643.94

Finding the Fourth Proportional to 99,811.05, 149,763.33 and 43,643.94

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Solution

The fourth proportional to 99,811.05, 149,763.33 and 43,643.94 is: 65,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,811.05 : 149,763.33 = 43,643.94 : x
  2. Step 2: Convert to fraction form
    99,811.05/149,763.33 = 43,643.94/x
  3. Step 3: Cross multiply
    99,811.05x = 149,763.33 × 43,643.94
  4. Step 4: Simplify right side
    99,811.05x = 6,536,261,788.72
  5. Step 5: Solve for x
    x = 6,536,261,788.72/99,811.05
  6. Step 6: Final answer
    x = 65,486.35

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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.