Finding the Fourth Proportional to 134,448.66, 185,545.86 and 74,018.68
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Solution
The fourth proportional to 134,448.66, 185,545.86 and 74,018.68 is: 102,149.47
Step by Step Solution
- Step 1: Write the proportion equation
134,448.66 : 185,545.86 = 74,018.68 : x - Step 2: Convert to fraction form
134,448.66/185,545.86 = 74,018.68/x - Step 3: Cross multiply
134,448.66x = 185,545.86 × 74,018.68 - Step 4: Simplify right side
134,448.66x = 13,733,858,895.23 - Step 5: Solve for x
x = 13,733,858,895.23/134,448.66 - Step 6: Final answer
x = 102,149.47
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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.