Finding the Fourth Proportional to 159,867.60, 239,887.80 and 71,134.80
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Solution
The fourth proportional to 159,867.60, 239,887.80 and 71,134.80 is: 106,740.64
Step by Step Solution
- Step 1: Write the proportion equation
159,867.60 : 239,887.80 = 71,134.80 : x - Step 2: Convert to fraction form
159,867.60/239,887.80 = 71,134.80/x - Step 3: Cross multiply
159,867.60x = 239,887.80 × 71,134.80 - Step 4: Simplify right side
159,867.60x = 17,064,370,675.44 - Step 5: Solve for x
x = 17,064,370,675.44/159,867.60 - Step 6: Final answer
x = 106,740.64
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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.