Finding the Fourth Proportional to 106,578.61, 147,078.50 and 58,831.99
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Solution
The fourth proportional to 106,578.61, 147,078.50 and 58,831.99 is: 81,188.15
Step by Step Solution
- Step 1: Write the proportion equation
106,578.61 : 147,078.50 = 58,831.99 : x - Step 2: Convert to fraction form
106,578.61/147,078.50 = 58,831.99/x - Step 3: Cross multiply
106,578.61x = 147,078.50 × 58,831.99 - Step 4: Simplify right side
106,578.61x = 8,652,920,252.90 - Step 5: Solve for x
x = 8,652,920,252.90/106,578.61 - Step 6: Final answer
x = 81,188.15
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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.