Finding the Fourth Proportional to 126,476.63, 174,547.67 and 72,031.09
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Solution
The fourth proportional to 126,476.63, 174,547.67 and 72,031.09 is: 99,408.55
Step by Step Solution
- Step 1: Write the proportion equation
126,476.63 : 174,547.67 = 72,031.09 : x - Step 2: Convert to fraction form
126,476.63/174,547.67 = 72,031.09/x - Step 3: Cross multiply
126,476.63x = 174,547.67 × 72,031.09 - Step 4: Simplify right side
126,476.63x = 12,572,857,694.17 - Step 5: Solve for x
x = 12,572,857,694.17/126,476.63 - Step 6: Final answer
x = 99,408.55
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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.