Finding the Fourth Proportional to 98,634.87, 136,124.42 and 60,394.23
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Solution
The fourth proportional to 98,634.87, 136,124.42 and 60,394.23 is: 83,349.12
Step by Step Solution
- Step 1: Write the proportion equation
98,634.87 : 136,124.42 = 60,394.23 : x - Step 2: Convert to fraction form
98,634.87/136,124.42 = 60,394.23/x - Step 3: Cross multiply
98,634.87x = 136,124.42 × 60,394.23 - Step 4: Simplify right side
98,634.87x = 8,221,129,228.13 - Step 5: Solve for x
x = 8,221,129,228.13/98,634.87 - Step 6: Final answer
x = 83,349.12
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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.