Finding the Fourth Proportional to 102,274.14, 141,089.75 and 72,076.08
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Solution
The fourth proportional to 102,274.14, 141,089.75 and 72,076.08 is: 99,430.76
Step by Step Solution
- Step 1: Write the proportion equation
102,274.14 : 141,089.75 = 72,076.08 : x - Step 2: Convert to fraction form
102,274.14/141,089.75 = 72,076.08/x - Step 3: Cross multiply
102,274.14x = 141,089.75 × 72,076.08 - Step 4: Simplify right side
102,274.14x = 10,169,195,753.54 - Step 5: Solve for x
x = 10,169,195,753.54/102,274.14 - Step 6: Final answer
x = 99,430.76
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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.