Finding the Fourth Proportional to 136,703.80, 205,055.70 and 122,925.70
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Solution
The fourth proportional to 136,703.80, 205,055.70 and 122,925.70 is: 184,388.55
Step by Step Solution
- Step 1: Write the proportion equation
136,703.80 : 205,055.70 = 122,925.70 : x - Step 2: Convert to fraction form
136,703.80/205,055.70 = 122,925.70/x - Step 3: Cross multiply
136,703.80x = 205,055.70 × 122,925.70 - Step 4: Simplify right side
136,703.80x = 25,206,615,461.49 - Step 5: Solve for x
x = 25,206,615,461.49/136,703.80 - Step 6: Final answer
x = 184,388.55
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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.