Finding the Fourth Proportional to 134,813.42, 186,043.51 and 74,386.30
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Solution
The fourth proportional to 134,813.42, 186,043.51 and 74,386.30 is: 102,653.65
Step by Step Solution
- Step 1: Write the proportion equation
134,813.42 : 186,043.51 = 74,386.30 : x - Step 2: Convert to fraction form
134,813.42/186,043.51 = 74,386.30/x - Step 3: Cross multiply
134,813.42x = 186,043.51 × 74,386.30 - Step 4: Simplify right side
134,813.42x = 13,839,088,627.06 - Step 5: Solve for x
x = 13,839,088,627.06/134,813.42 - Step 6: Final answer
x = 102,653.65
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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.