Finding the Fourth Proportional to 109,741.18, 164,599.95 and 74,429.18
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Solution
The fourth proportional to 109,741.18, 164,599.95 and 74,429.18 is: 111,635.75
Step by Step Solution
- Step 1: Write the proportion equation
109,741.18 : 164,599.95 = 74,429.18 : x - Step 2: Convert to fraction form
109,741.18/164,599.95 = 74,429.18/x - Step 3: Cross multiply
109,741.18x = 164,599.95 × 74,429.18 - Step 4: Simplify right side
109,741.18x = 12,251,038,961.24 - Step 5: Solve for x
x = 12,251,038,961.24/109,741.18 - Step 6: Final answer
x = 111,635.75
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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.