Finding the Fourth Proportional to 163,603.85, 245,537.02 and 84,740.63
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Solution
The fourth proportional to 163,603.85, 245,537.02 and 84,740.63 is: 127,178.92
Step by Step Solution
- Step 1: Write the proportion equation
163,603.85 : 245,537.02 = 84,740.63 : x - Step 2: Convert to fraction form
163,603.85/245,537.02 = 84,740.63/x - Step 3: Cross multiply
163,603.85x = 245,537.02 × 84,740.63 - Step 4: Simplify right side
163,603.85x = 20,806,961,763.12 - Step 5: Solve for x
x = 20,806,961,763.12/163,603.85 - Step 6: Final answer
x = 127,178.92
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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.