Finding the Fourth Proportional to 151,746.95, 209,368.87 and 87,212.84
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Solution
The fourth proportional to 151,746.95, 209,368.87 and 87,212.84 is: 120,329.62
Step by Step Solution
- Step 1: Write the proportion equation
151,746.95 : 209,368.87 = 87,212.84 : x - Step 2: Convert to fraction form
151,746.95/209,368.87 = 87,212.84/x - Step 3: Cross multiply
151,746.95x = 209,368.87 × 87,212.84 - Step 4: Simplify right side
151,746.95x = 18,259,652,495.41 - Step 5: Solve for x
x = 18,259,652,495.41/151,746.95 - Step 6: Final answer
x = 120,329.62
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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.