Finding the Fourth Proportional to 125,235.42, 187,881.93 and 40,998.30
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Solution
The fourth proportional to 125,235.42, 187,881.93 and 40,998.30 is: 61,506.88
Step by Step Solution
- Step 1: Write the proportion equation
125,235.42 : 187,881.93 = 40,998.30 : x - Step 2: Convert to fraction form
125,235.42/187,881.93 = 40,998.30/x - Step 3: Cross multiply
125,235.42x = 187,881.93 × 40,998.30 - Step 4: Simplify right side
125,235.42x = 7,702,839,730.72 - Step 5: Solve for x
x = 7,702,839,730.72/125,235.42 - Step 6: Final answer
x = 61,506.88
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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.