Finding the Fourth Proportional to 100,916.14, 139,267.74 and 55,597.18
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Solution
The fourth proportional to 100,916.14, 139,267.74 and 55,597.18 is: 76,726.02
Step by Step Solution
- Step 1: Write the proportion equation
100,916.14 : 139,267.74 = 55,597.18 : x - Step 2: Convert to fraction form
100,916.14/139,267.74 = 55,597.18/x - Step 3: Cross multiply
100,916.14x = 139,267.74 × 55,597.18 - Step 4: Simplify right side
100,916.14x = 7,742,893,608.97 - Step 5: Solve for x
x = 7,742,893,608.97/100,916.14 - Step 6: Final answer
x = 76,726.02
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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.