Finding the Fourth Proportional to 112,990.40, 155,926.33 and 62,003.99
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Solution
The fourth proportional to 112,990.40, 155,926.33 and 62,003.99 is: 85,565.26
Step by Step Solution
- Step 1: Write the proportion equation
112,990.40 : 155,926.33 = 62,003.99 : x - Step 2: Convert to fraction form
112,990.40/155,926.33 = 62,003.99/x - Step 3: Cross multiply
112,990.40x = 155,926.33 × 62,003.99 - Step 4: Simplify right side
112,990.40x = 9,668,053,671.42 - Step 5: Solve for x
x = 9,668,053,671.42/112,990.40 - Step 6: Final answer
x = 85,565.26
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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.