Finding the Fourth Proportional to 122,118.08, 183,246.40 and 51,990.08
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Solution
The fourth proportional to 122,118.08, 183,246.40 and 51,990.08 is: 78,014.61
Step by Step Solution
- Step 1: Write the proportion equation
122,118.08 : 183,246.40 = 51,990.08 : x - Step 2: Convert to fraction form
122,118.08/183,246.40 = 51,990.08/x - Step 3: Cross multiply
122,118.08x = 183,246.40 × 51,990.08 - Step 4: Simplify right side
122,118.08x = 9,526,994,995.71 - Step 5: Solve for x
x = 9,526,994,995.71/122,118.08 - Step 6: Final answer
x = 78,014.61
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1.5x scale
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.