Finding the Fourth Proportional to 132,413.70, 198,547.65 and 53,438.70
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Solution
The fourth proportional to 132,413.70, 198,547.65 and 53,438.70 is: 80,128.63
Step by Step Solution
- Step 1: Write the proportion equation
132,413.70 : 198,547.65 = 53,438.70 : x - Step 2: Convert to fraction form
132,413.70/198,547.65 = 53,438.70/x - Step 3: Cross multiply
132,413.70x = 198,547.65 × 53,438.70 - Step 4: Simplify right side
132,413.70x = 10,610,128,304.06 - Step 5: Solve for x
x = 10,610,128,304.06/132,413.70 - Step 6: Final answer
x = 80,128.63
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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.