Finding the Fourth Proportional to 121,318.39, 181,706.77 and 93,030.09
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Solution
The fourth proportional to 121,318.39, 181,706.77 and 93,030.09 is: 139,337.47
Step by Step Solution
- Step 1: Write the proportion equation
121,318.39 : 181,706.77 = 93,030.09 : x - Step 2: Convert to fraction form
121,318.39/181,706.77 = 93,030.09/x - Step 3: Cross multiply
121,318.39x = 181,706.77 × 93,030.09 - Step 4: Simplify right side
121,318.39x = 16,904,197,166.71 - Step 5: Solve for x
x = 16,904,197,166.71/121,318.39 - Step 6: Final answer
x = 139,337.47
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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.