Finding the Fourth Proportional to 106,732.60, 147,290.94 and 58,985.52
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Solution
The fourth proportional to 106,732.60, 147,290.94 and 58,985.52 is: 81,399.99
Step by Step Solution
- Step 1: Write the proportion equation
106,732.60 : 147,290.94 = 58,985.52 : x - Step 2: Convert to fraction form
106,732.60/147,290.94 = 58,985.52/x - Step 3: Cross multiply
106,732.60x = 147,290.94 × 58,985.52 - Step 4: Simplify right side
106,732.60x = 8,688,032,687.19 - Step 5: Solve for x
x = 8,688,032,687.19/106,732.60 - Step 6: Final answer
x = 81,399.99
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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.