Finding the Fourth Proportional to 99,134.57, 136,801.98 and 53,811.57
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Solution
The fourth proportional to 99,134.57, 136,801.98 and 53,811.57 is: 74,257.95
Step by Step Solution
- Step 1: Write the proportion equation
99,134.57 : 136,801.98 = 53,811.57 : x - Step 2: Convert to fraction form
99,134.57/136,801.98 = 53,811.57/x - Step 3: Cross multiply
99,134.57x = 136,801.98 × 53,811.57 - Step 4: Simplify right side
99,134.57x = 7,361,529,835.92 - Step 5: Solve for x
x = 7,361,529,835.92/99,134.57 - Step 6: Final answer
x = 74,257.95
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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.