Finding the Fourth Proportional to 97,981.80, 135,228.60 and 70,845.99
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Solution
The fourth proportional to 97,981.80, 135,228.60 and 70,845.99 is: 97,777.38
Step by Step Solution
- Step 1: Write the proportion equation
97,981.80 : 135,228.60 = 70,845.99 : x - Step 2: Convert to fraction form
97,981.80/135,228.60 = 70,845.99/x - Step 3: Cross multiply
97,981.80x = 135,228.60 × 70,845.99 - Step 4: Simplify right side
97,981.80x = 9,580,404,043.31 - Step 5: Solve for x
x = 9,580,404,043.31/97,981.80 - Step 6: Final answer
x = 97,777.38
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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.