Finding the Fourth Proportional to 176,711.21, 243,858.11 and 98,126.53
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Solution
The fourth proportional to 176,711.21, 243,858.11 and 98,126.53 is: 135,412.75
Step by Step Solution
- Step 1: Write the proportion equation
176,711.21 : 243,858.11 = 98,126.53 : x - Step 2: Convert to fraction form
176,711.21/243,858.11 = 98,126.53/x - Step 3: Cross multiply
176,711.21x = 243,858.11 × 98,126.53 - Step 4: Simplify right side
176,711.21x = 23,928,950,146.66 - Step 5: Solve for x
x = 23,928,950,146.66/176,711.21 - Step 6: Final answer
x = 135,412.75
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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.