Finding the Fourth Proportional to 109,639.60, 164,131.35 and 97,829.80
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Solution
The fourth proportional to 109,639.60, 164,131.35 and 97,829.80 is: 146,451.99
Step by Step Solution
- Step 1: Write the proportion equation
109,639.60 : 164,131.35 = 97,829.80 : x - Step 2: Convert to fraction form
109,639.60/164,131.35 = 97,829.80/x - Step 3: Cross multiply
109,639.60x = 164,131.35 × 97,829.80 - Step 4: Simplify right side
109,639.60x = 16,056,937,144.23 - Step 5: Solve for x
x = 16,056,937,144.23/109,639.60 - Step 6: Final answer
x = 146,451.99
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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.