Home / 149,040.18-223,494.66-78,903.09

Finding the Fourth Proportional to 149,040.18, 223,494.66 and 78,903.09

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Solution

The fourth proportional to 149,040.18, 223,494.66 and 78,903.09 is: 118,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,040.18 : 223,494.66 = 78,903.09 : x
  2. Step 2: Convert to fraction form
    149,040.18/223,494.66 = 78,903.09/x
  3. Step 3: Cross multiply
    149,040.18x = 223,494.66 × 78,903.09
  4. Step 4: Simplify right side
    149,040.18x = 17,634,419,272.50
  5. Step 5: Solve for x
    x = 17,634,419,272.50/149,040.18
  6. Step 6: Final answer
    x = 118,319.90

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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.