Finding the Fourth Proportional to 131,363.50, 181,281.84 and 74,774.88
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Solution
The fourth proportional to 131,363.50, 181,281.84 and 74,774.88 is: 103,189.45
Step by Step Solution
- Step 1: Write the proportion equation
131,363.50 : 181,281.84 = 74,774.88 : x - Step 2: Convert to fraction form
131,363.50/181,281.84 = 74,774.88/x - Step 3: Cross multiply
131,363.50x = 181,281.84 × 74,774.88 - Step 4: Simplify right side
131,363.50x = 13,555,327,832.18 - Step 5: Solve for x
x = 13,555,327,832.18/131,363.50 - Step 6: Final answer
x = 103,189.45
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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.