Finding the Fourth Proportional to 134,635.52, 185,829.12 and 78,078.08
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Solution
The fourth proportional to 134,635.52, 185,829.12 and 78,078.08 is: 107,766.37
Step by Step Solution
- Step 1: Write the proportion equation
134,635.52 : 185,829.12 = 78,078.08 : x - Step 2: Convert to fraction form
134,635.52/185,829.12 = 78,078.08/x - Step 3: Cross multiply
134,635.52x = 185,829.12 × 78,078.08 - Step 4: Simplify right side
134,635.52x = 14,509,180,897.69 - Step 5: Solve for x
x = 14,509,180,897.69/134,635.52 - Step 6: Final answer
x = 107,766.37
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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.