Finding the Fourth Proportional to 105,427.18, 158,039.25 and 38,830.99
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Solution
The fourth proportional to 105,427.18, 158,039.25 and 38,830.99 is: 58,209.09
Step by Step Solution
- Step 1: Write the proportion equation
105,427.18 : 158,039.25 = 38,830.99 : x - Step 2: Convert to fraction form
105,427.18/158,039.25 = 38,830.99/x - Step 3: Cross multiply
105,427.18x = 158,039.25 × 38,830.99 - Step 4: Simplify right side
105,427.18x = 6,136,820,536.36 - Step 5: Solve for x
x = 6,136,820,536.36/105,427.18 - Step 6: Final answer
x = 58,209.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.