Finding the Fourth Proportional to 172,083.68, 237,409.14 and 126,869.14
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Solution
The fourth proportional to 172,083.68, 237,409.14 and 126,869.14 is: 175,030.51
Step by Step Solution
- Step 1: Write the proportion equation
172,083.68 : 237,409.14 = 126,869.14 : x - Step 2: Convert to fraction form
172,083.68/237,409.14 = 126,869.14/x - Step 3: Cross multiply
172,083.68x = 237,409.14 × 126,869.14 - Step 4: Simplify right side
172,083.68x = 30,119,893,419.94 - Step 5: Solve for x
x = 30,119,893,419.94/172,083.68 - Step 6: Final answer
x = 175,030.51
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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.