Finding the Fourth Proportional to 137,887.02, 190,263.36 and 77,446.08
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Solution
The fourth proportional to 137,887.02, 190,263.36 and 77,446.08 is: 106,863.95
Step by Step Solution
- Step 1: Write the proportion equation
137,887.02 : 190,263.36 = 77,446.08 : x - Step 2: Convert to fraction form
137,887.02/190,263.36 = 77,446.08/x - Step 3: Cross multiply
137,887.02x = 190,263.36 × 77,446.08 - Step 4: Simplify right side
137,887.02x = 14,735,151,399.63 - Step 5: Solve for x
x = 14,735,151,399.63/137,887.02 - Step 6: Final answer
x = 106,863.95
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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.