Finding the Fourth Proportional to 102,460.08, 141,395.44 and 57,140.80
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Solution
The fourth proportional to 102,460.08, 141,395.44 and 57,140.80 is: 78,854.60
Step by Step Solution
- Step 1: Write the proportion equation
102,460.08 : 141,395.44 = 57,140.80 : x - Step 2: Convert to fraction form
102,460.08/141,395.44 = 57,140.80/x - Step 3: Cross multiply
102,460.08x = 141,395.44 × 57,140.80 - Step 4: Simplify right side
102,460.08x = 8,079,448,557.95 - Step 5: Solve for x
x = 8,079,448,557.95/102,460.08 - Step 6: Final answer
x = 78,854.60
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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.