Finding the Fourth Proportional to 153,871.26, 230,804.49 and 78,948.17
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Solution
The fourth proportional to 153,871.26, 230,804.49 and 78,948.17 is: 118,421.02
Step by Step Solution
- Step 1: Write the proportion equation
153,871.26 : 230,804.49 = 78,948.17 : x - Step 2: Convert to fraction form
153,871.26/230,804.49 = 78,948.17/x - Step 3: Cross multiply
153,871.26x = 230,804.49 × 78,948.17 - Step 4: Simplify right side
153,871.26x = 18,221,590,959.26 - Step 5: Solve for x
x = 18,221,590,959.26/153,871.26 - Step 6: Final answer
x = 118,421.02
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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.