Finding the Fourth Proportional to 136,094.84, 187,813.93 and 74,837.15
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Solution
The fourth proportional to 136,094.84, 187,813.93 and 74,837.15 is: 103,276.94
Step by Step Solution
- Step 1: Write the proportion equation
136,094.84 : 187,813.93 = 74,837.15 : x - Step 2: Convert to fraction form
136,094.84/187,813.93 = 74,837.15/x - Step 3: Cross multiply
136,094.84x = 187,813.93 × 74,837.15 - Step 4: Simplify right side
136,094.84x = 14,055,457,938.24 - Step 5: Solve for x
x = 14,055,457,938.24/136,094.84 - Step 6: Final answer
x = 103,276.94
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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.