Finding the Fourth Proportional to 131,451.06, 181,402.47 and 74,867.70
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Solution
The fourth proportional to 131,451.06, 181,402.47 and 74,867.70 is: 103,317.43
Step by Step Solution
- Step 1: Write the proportion equation
131,451.06 : 181,402.47 = 74,867.70 : x - Step 2: Convert to fraction form
131,451.06/181,402.47 = 74,867.70/x - Step 3: Cross multiply
131,451.06x = 181,402.47 × 74,867.70 - Step 4: Simplify right side
131,451.06x = 13,581,185,703.22 - Step 5: Solve for x
x = 13,581,185,703.22/131,451.06 - Step 6: Final answer
x = 103,317.43
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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.