Finding the Fourth Proportional to 171,038.10, 256,702.95 and 76,413.90
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Solution
The fourth proportional to 171,038.10, 256,702.95 and 76,413.90 is: 114,685.99
Step by Step Solution
- Step 1: Write the proportion equation
171,038.10 : 256,702.95 = 76,413.90 : x - Step 2: Convert to fraction form
171,038.10/256,702.95 = 76,413.90/x - Step 3: Cross multiply
171,038.10x = 256,702.95 × 76,413.90 - Step 4: Simplify right side
171,038.10x = 19,615,673,551.01 - Step 5: Solve for x
x = 19,615,673,551.01/171,038.10 - Step 6: Final answer
x = 114,685.99
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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.