Finding the Fourth Proportional to 145,703.19, 218,401.68 and 66,752.49
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Solution
The fourth proportional to 145,703.19, 218,401.68 and 66,752.49 is: 100,058.59
Step by Step Solution
- Step 1: Write the proportion equation
145,703.19 : 218,401.68 = 66,752.49 : x - Step 2: Convert to fraction form
145,703.19/218,401.68 = 66,752.49/x - Step 3: Cross multiply
145,703.19x = 218,401.68 × 66,752.49 - Step 4: Simplify right side
145,703.19x = 14,578,855,960.18 - Step 5: Solve for x
x = 14,578,855,960.18/145,703.19 - Step 6: Final answer
x = 100,058.59
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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.