Finding the Fourth Proportional to 134,787.29, 185,998.47 and 74,358.05
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Solution
The fourth proportional to 134,787.29, 185,998.47 and 74,358.05 is: 102,609.70
Step by Step Solution
- Step 1: Write the proportion equation
134,787.29 : 185,998.47 = 74,358.05 : x - Step 2: Convert to fraction form
134,787.29/185,998.47 = 74,358.05/x - Step 3: Cross multiply
134,787.29x = 185,998.47 × 74,358.05 - Step 4: Simplify right side
134,787.29x = 13,830,482,602.19 - Step 5: Solve for x
x = 13,830,482,602.19/134,787.29 - Step 6: Final answer
x = 102,609.70
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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.