Finding the Fourth Proportional to 147,787.31, 203,946.73 and 84,125.12
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Solution
The fourth proportional to 147,787.31, 203,946.73 and 84,125.12 is: 116,092.79
Step by Step Solution
- Step 1: Write the proportion equation
147,787.31 : 203,946.73 = 84,125.12 : x - Step 2: Convert to fraction form
147,787.31/203,946.73 = 84,125.12/x - Step 3: Cross multiply
147,787.31x = 203,946.73 × 84,125.12 - Step 4: Simplify right side
147,787.31x = 17,157,041,904.81 - Step 5: Solve for x
x = 17,157,041,904.81/147,787.31 - Step 6: Final answer
x = 116,092.79
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1.5x scale
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.