Finding the Fourth Proportional to 124,379.35, 171,507.99 and 84,023.08
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Solution
The fourth proportional to 124,379.35, 171,507.99 and 84,023.08 is: 115,860.31
Step by Step Solution
- Step 1: Write the proportion equation
124,379.35 : 171,507.99 = 84,023.08 : x - Step 2: Convert to fraction form
124,379.35/171,507.99 = 84,023.08/x - Step 3: Cross multiply
124,379.35x = 171,507.99 × 84,023.08 - Step 4: Simplify right side
124,379.35x = 14,410,629,564.41 - Step 5: Solve for x
x = 14,410,629,564.41/124,379.35 - Step 6: Final answer
x = 115,860.31
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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.