Finding the Fourth Proportional to 99,230.52, 136,950.06 and 56,788.14
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Solution
The fourth proportional to 99,230.52, 136,950.06 and 56,788.14 is: 78,374.47
Step by Step Solution
- Step 1: Write the proportion equation
99,230.52 : 136,950.06 = 56,788.14 : x - Step 2: Convert to fraction form
99,230.52/136,950.06 = 56,788.14/x - Step 3: Cross multiply
99,230.52x = 136,950.06 × 56,788.14 - Step 4: Simplify right side
99,230.52x = 7,777,139,180.29 - Step 5: Solve for x
x = 7,777,139,180.29/99,230.52 - Step 6: Final answer
x = 78,374.47
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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.