Finding the Fourth Proportional to 107,693.70, 148,616.01 and 62,981.70
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Solution
The fourth proportional to 107,693.70, 148,616.01 and 62,981.70 is: 86,913.99
Step by Step Solution
- Step 1: Write the proportion equation
107,693.70 : 148,616.01 = 62,981.70 : x - Step 2: Convert to fraction form
107,693.70/148,616.01 = 62,981.70/x - Step 3: Cross multiply
107,693.70x = 148,616.01 × 62,981.70 - Step 4: Simplify right side
107,693.70x = 9,360,088,957.02 - Step 5: Solve for x
x = 9,360,088,957.02/107,693.70 - Step 6: Final answer
x = 86,913.99
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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.