Finding the Fourth Proportional to 126,547.84, 189,749.87 and 51,580.18
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Solution
The fourth proportional to 126,547.84, 189,749.87 and 51,580.18 is: 77,340.96
Step by Step Solution
- Step 1: Write the proportion equation
126,547.84 : 189,749.87 = 51,580.18 : x - Step 2: Convert to fraction form
126,547.84/189,749.87 = 51,580.18/x - Step 3: Cross multiply
126,547.84x = 189,749.87 × 51,580.18 - Step 4: Simplify right side
126,547.84x = 9,787,331,242.93 - Step 5: Solve for x
x = 9,787,331,242.93/126,547.84 - Step 6: Final answer
x = 77,340.96
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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.