Finding the Fourth Proportional to 105,213.48, 157,869.42 and 60,877.53
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Solution
The fourth proportional to 105,213.48, 157,869.42 and 60,877.53 is: 91,344.76
Step by Step Solution
- Step 1: Write the proportion equation
105,213.48 : 157,869.42 = 60,877.53 : x - Step 2: Convert to fraction form
105,213.48/157,869.42 = 60,877.53/x - Step 3: Cross multiply
105,213.48x = 157,869.42 × 60,877.53 - Step 4: Simplify right side
105,213.48x = 9,610,700,352.13 - Step 5: Solve for x
x = 9,610,700,352.13/105,213.48 - Step 6: Final answer
x = 91,344.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.