Finding the Fourth Proportional to 121,302.20, 167,397.73 and 70,345.19
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Solution
The fourth proportional to 121,302.20, 167,397.73 and 70,345.19 is: 97,076.76
Step by Step Solution
- Step 1: Write the proportion equation
121,302.20 : 167,397.73 = 70,345.19 : x - Step 2: Convert to fraction form
121,302.20/167,397.73 = 70,345.19/x - Step 3: Cross multiply
121,302.20x = 167,397.73 × 70,345.19 - Step 4: Simplify right side
121,302.20x = 11,775,625,051.18 - Step 5: Solve for x
x = 11,775,625,051.18/121,302.20 - Step 6: Final answer
x = 97,076.76
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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.