Home / 149,063.23-223,680.96-78,942.55

Finding the Fourth Proportional to 149,063.23, 223,680.96 and 78,942.55

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Solution

The fourth proportional to 149,063.23, 223,680.96 and 78,942.55 is: 118,459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,063.23 : 223,680.96 = 78,942.55 : x
  2. Step 2: Convert to fraction form
    149,063.23/223,680.96 = 78,942.55/x
  3. Step 3: Cross multiply
    149,063.23x = 223,680.96 × 78,942.55
  4. Step 4: Simplify right side
    149,063.23x = 17,657,945,368.85
  5. Step 5: Solve for x
    x = 17,657,945,368.85/149,063.23
  6. Step 6: Final answer
    x = 118,459.43

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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.