Finding the Fourth Proportional to 105,385.17, 145,435.32 and 60,069.99
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Solution
The fourth proportional to 105,385.17, 145,435.32 and 60,069.99 is: 82,898.74
Step by Step Solution
- Step 1: Write the proportion equation
105,385.17 : 145,435.32 = 60,069.99 : x - Step 2: Convert to fraction form
105,385.17/145,435.32 = 60,069.99/x - Step 3: Cross multiply
105,385.17x = 145,435.32 × 60,069.99 - Step 4: Simplify right side
105,385.17x = 8,736,298,218.05 - Step 5: Solve for x
x = 8,736,298,218.05/105,385.17 - Step 6: Final answer
x = 82,898.74
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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.