Finding the Fourth Proportional to 125,602.17, 173,288.12 and 77,838.09
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Solution
The fourth proportional to 125,602.17, 173,288.12 and 77,838.09 is: 107,389.99
Step by Step Solution
- Step 1: Write the proportion equation
125,602.17 : 173,288.12 = 77,838.09 : x - Step 2: Convert to fraction form
125,602.17/173,288.12 = 77,838.09/x - Step 3: Cross multiply
125,602.17x = 173,288.12 × 77,838.09 - Step 4: Simplify right side
125,602.17x = 13,488,416,280.49 - Step 5: Solve for x
x = 13,488,416,280.49/125,602.17 - Step 6: Final answer
x = 107,389.99
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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.