Finding the Fourth Proportional to 137,102.84, 189,201.16 and 76,673.48
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Solution
The fourth proportional to 137,102.84, 189,201.16 and 76,673.48 is: 105,808.98
Step by Step Solution
- Step 1: Write the proportion equation
137,102.84 : 189,201.16 = 76,673.48 : x - Step 2: Convert to fraction form
137,102.84/189,201.16 = 76,673.48/x - Step 3: Cross multiply
137,102.84x = 189,201.16 × 76,673.48 - Step 4: Simplify right side
137,102.84x = 14,506,711,357.24 - Step 5: Solve for x
x = 14,506,711,357.24/137,102.84 - Step 6: Final answer
x = 105,808.98
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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.