Finding the Fourth Proportional to 159,612.90, 239,419.35 and 103,625.70
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Solution
The fourth proportional to 159,612.90, 239,419.35 and 103,625.70 is: 155,438.55
Step by Step Solution
- Step 1: Write the proportion equation
159,612.90 : 239,419.35 = 103,625.70 : x - Step 2: Convert to fraction form
159,612.90/239,419.35 = 103,625.70/x - Step 3: Cross multiply
159,612.90x = 239,419.35 × 103,625.70 - Step 4: Simplify right side
159,612.90x = 24,809,997,737.30 - Step 5: Solve for x
x = 24,809,997,737.30/159,612.90 - Step 6: Final answer
x = 155,438.55
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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.