Finding the Fourth Proportional to 157,893.20, 218,038.13 and 101,402.99
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Solution
The fourth proportional to 157,893.20, 218,038.13 and 101,402.99 is: 140,029.57
Step by Step Solution
- Step 1: Write the proportion equation
157,893.20 : 218,038.13 = 101,402.99 : x - Step 2: Convert to fraction form
157,893.20/218,038.13 = 101,402.99/x - Step 3: Cross multiply
157,893.20x = 218,038.13 × 101,402.99 - Step 4: Simplify right side
157,893.20x = 22,109,716,718.80 - Step 5: Solve for x
x = 22,109,716,718.80/157,893.20 - Step 6: Final answer
x = 140,029.57
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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.