Finding the Fourth Proportional to 153,988.44, 212,430.96 and 96,599.40
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Solution
The fourth proportional to 153,988.44, 212,430.96 and 96,599.40 is: 133,261.32
Step by Step Solution
- Step 1: Write the proportion equation
153,988.44 : 212,430.96 = 96,599.40 : x - Step 2: Convert to fraction form
153,988.44/212,430.96 = 96,599.40/x - Step 3: Cross multiply
153,988.44x = 212,430.96 × 96,599.40 - Step 4: Simplify right side
153,988.44x = 20,520,703,277.42 - Step 5: Solve for x
x = 20,520,703,277.42/153,988.44 - Step 6: Final answer
x = 133,261.32
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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.