Finding the Fourth Proportional to 159,920.19, 239,881.51 and 54,740.07
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Solution
The fourth proportional to 159,920.19, 239,881.51 and 54,740.07 is: 82,110.52
Step by Step Solution
- Step 1: Write the proportion equation
159,920.19 : 239,881.51 = 54,740.07 : x - Step 2: Convert to fraction form
159,920.19/239,881.51 = 54,740.07/x - Step 3: Cross multiply
159,920.19x = 239,881.51 × 54,740.07 - Step 4: Simplify right side
159,920.19x = 13,131,130,649.11 - Step 5: Solve for x
x = 13,131,130,649.11/159,920.19 - Step 6: Final answer
x = 82,110.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.