Finding the Fourth Proportional to 157,058.51, 216,821.00 and 121,167.95
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Solution
The fourth proportional to 157,058.51, 216,821.00 and 121,167.95 is: 167,273.69
Step by Step Solution
- Step 1: Write the proportion equation
157,058.51 : 216,821.00 = 121,167.95 : x - Step 2: Convert to fraction form
157,058.51/216,821.00 = 121,167.95/x - Step 3: Cross multiply
157,058.51x = 216,821.00 × 121,167.95 - Step 4: Simplify right side
157,058.51x = 26,271,755,305.76 - Step 5: Solve for x
x = 26,271,755,305.76/157,058.51 - Step 6: Final answer
x = 167,273.69
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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.