Finding the Fourth Proportional to 153,091.58, 211,369.48 and 136,908.68
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Solution
The fourth proportional to 153,091.58, 211,369.48 and 136,908.68 is: 189,026.18
Step by Step Solution
- Step 1: Write the proportion equation
153,091.58 : 211,369.48 = 136,908.68 : x - Step 2: Convert to fraction form
153,091.58/211,369.48 = 136,908.68/x - Step 3: Cross multiply
153,091.58x = 211,369.48 × 136,908.68 - Step 4: Simplify right side
153,091.58x = 28,938,316,685.24 - Step 5: Solve for x
x = 28,938,316,685.24/153,091.58 - Step 6: Final answer
x = 189,026.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.