Finding the Fourth Proportional to 131,618.51, 181,633.35 and 74,257.75
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Solution
The fourth proportional to 131,618.51, 181,633.35 and 74,257.75 is: 102,475.59
Step by Step Solution
- Step 1: Write the proportion equation
131,618.51 : 181,633.35 = 74,257.75 : x - Step 2: Convert to fraction form
131,618.51/181,633.35 = 74,257.75/x - Step 3: Cross multiply
131,618.51x = 181,633.35 × 74,257.75 - Step 4: Simplify right side
131,618.51x = 13,487,683,895.96 - Step 5: Solve for x
x = 13,487,683,895.96/131,618.51 - Step 6: Final answer
x = 102,475.59
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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.