Finding the Fourth Proportional to 93,007.80, 139,511.70 and 84,697.20
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Solution
The fourth proportional to 93,007.80, 139,511.70 and 84,697.20 is: 127,045.80
Step by Step Solution
- Step 1: Write the proportion equation
93,007.80 : 139,511.70 = 84,697.20 : x - Step 2: Convert to fraction form
93,007.80/139,511.70 = 84,697.20/x - Step 3: Cross multiply
93,007.80x = 139,511.70 × 84,697.20 - Step 4: Simplify right side
93,007.80x = 11,816,250,357.24 - Step 5: Solve for x
x = 11,816,250,357.24/93,007.80 - Step 6: Final answer
x = 127,045.80
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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.