Finding the Fourth Proportional to 137,277.41, 189,444.84 and 79,102.07
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Solution
The fourth proportional to 137,277.41, 189,444.84 and 79,102.07 is: 109,162.02
Step by Step Solution
- Step 1: Write the proportion equation
137,277.41 : 189,444.84 = 79,102.07 : x - Step 2: Convert to fraction form
137,277.41/189,444.84 = 79,102.07/x - Step 3: Cross multiply
137,277.41x = 189,444.84 × 79,102.07 - Step 4: Simplify right side
137,277.41x = 14,985,478,994.82 - Step 5: Solve for x
x = 14,985,478,994.82/137,277.41 - Step 6: Final answer
x = 109,162.02
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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.