Finding the Fourth Proportional to 117,641.58, 176,447.78 and 69,638.75
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Solution
The fourth proportional to 117,641.58, 176,447.78 and 69,638.75 is: 104,449.49
Step by Step Solution
- Step 1: Write the proportion equation
117,641.58 : 176,447.78 = 69,638.75 : x - Step 2: Convert to fraction form
117,641.58/176,447.78 = 69,638.75/x - Step 3: Cross multiply
117,641.58x = 176,447.78 × 69,638.75 - Step 4: Simplify right side
117,641.58x = 12,287,602,839.48 - Step 5: Solve for x
x = 12,287,602,839.48/117,641.58 - Step 6: Final answer
x = 104,449.49
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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.