Finding the Fourth Proportional to 126,312.84, 174,368.40 and 83,317.68
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Solution
The fourth proportional to 126,312.84, 174,368.40 and 83,317.68 is: 115,015.79
Step by Step Solution
- Step 1: Write the proportion equation
126,312.84 : 174,368.40 = 83,317.68 : x - Step 2: Convert to fraction form
126,312.84/174,368.40 = 83,317.68/x - Step 3: Cross multiply
126,312.84x = 174,368.40 × 83,317.68 - Step 4: Simplify right side
126,312.84x = 14,527,970,553.31 - Step 5: Solve for x
x = 14,527,970,553.31/126,312.84 - Step 6: Final answer
x = 115,015.79
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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.