Finding the Fourth Proportional to 153,430.62, 211,673.43 and 93,849.18
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Solution
The fourth proportional to 153,430.62, 211,673.43 and 93,849.18 is: 129,474.66
Step by Step Solution
- Step 1: Write the proportion equation
153,430.62 : 211,673.43 = 93,849.18 : x - Step 2: Convert to fraction form
153,430.62/211,673.43 = 93,849.18/x - Step 3: Cross multiply
153,430.62x = 211,673.43 × 93,849.18 - Step 4: Simplify right side
153,430.62x = 19,865,377,833.29 - Step 5: Solve for x
x = 19,865,377,833.29/153,430.62 - Step 6: Final answer
x = 129,474.66
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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.