Finding the Fourth Proportional to 102,339.27, 141,238.53 and 57,024.63
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Solution
The fourth proportional to 102,339.27, 141,238.53 and 57,024.63 is: 78,699.75
Step by Step Solution
- Step 1: Write the proportion equation
102,339.27 : 141,238.53 = 57,024.63 : x - Step 2: Convert to fraction form
102,339.27/141,238.53 = 57,024.63/x - Step 3: Cross multiply
102,339.27x = 141,238.53 × 57,024.63 - Step 4: Simplify right side
102,339.27x = 8,054,074,914.99 - Step 5: Solve for x
x = 8,054,074,914.99/102,339.27 - Step 6: Final answer
x = 78,699.75
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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.