Finding the Fourth Proportional to 137,276.06, 205,855.77 and 47,328.62
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Solution
The fourth proportional to 137,276.06, 205,855.77 and 47,328.62 is: 70,972.82
Step by Step Solution
- Step 1: Write the proportion equation
137,276.06 : 205,855.77 = 47,328.62 : x - Step 2: Convert to fraction form
137,276.06/205,855.77 = 47,328.62/x - Step 3: Cross multiply
137,276.06x = 205,855.77 × 47,328.62 - Step 4: Simplify right side
137,276.06x = 9,742,869,513.14 - Step 5: Solve for x
x = 9,742,869,513.14/137,276.06 - Step 6: Final answer
x = 70,972.82
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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.