Finding the Fourth Proportional to 135,698.42, 203,545.20 and 55,719.02
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Solution
The fourth proportional to 135,698.42, 203,545.20 and 55,719.02 is: 83,577.53
Step by Step Solution
- Step 1: Write the proportion equation
135,698.42 : 203,545.20 = 55,719.02 : x - Step 2: Convert to fraction form
135,698.42/203,545.20 = 55,719.02/x - Step 3: Cross multiply
135,698.42x = 203,545.20 × 55,719.02 - Step 4: Simplify right side
135,698.42x = 11,341,339,069.70 - Step 5: Solve for x
x = 11,341,339,069.70/135,698.42 - Step 6: Final answer
x = 83,577.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.