Finding the Fourth Proportional to 117,587.80, 176,381.70 and 115,643.80
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Solution
The fourth proportional to 117,587.80, 176,381.70 and 115,643.80 is: 173,465.70
Step by Step Solution
- Step 1: Write the proportion equation
117,587.80 : 176,381.70 = 115,643.80 : x - Step 2: Convert to fraction form
117,587.80/176,381.70 = 115,643.80/x - Step 3: Cross multiply
117,587.80x = 176,381.70 × 115,643.80 - Step 4: Simplify right side
117,587.80x = 20,397,450,038.46 - Step 5: Solve for x
x = 20,397,450,038.46/117,587.80 - Step 6: Final answer
x = 173,465.70
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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.