Finding the Fourth Proportional to 119,442.51, 164,762.10 and 74,652.75
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Solution
The fourth proportional to 119,442.51, 164,762.10 and 74,652.75 is: 102,977.94
Step by Step Solution
- Step 1: Write the proportion equation
119,442.51 : 164,762.10 = 74,652.75 : x - Step 2: Convert to fraction form
119,442.51/164,762.10 = 74,652.75/x - Step 3: Cross multiply
119,442.51x = 164,762.10 × 74,652.75 - Step 4: Simplify right side
119,442.51x = 12,299,943,860.78 - Step 5: Solve for x
x = 12,299,943,860.78/119,442.51 - Step 6: Final answer
x = 102,977.94
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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.