Finding the Fourth Proportional to 154,215.24, 212,841.12 and 93,804.83
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Solution
The fourth proportional to 154,215.24, 212,841.12 and 93,804.83 is: 129,465.32
Step by Step Solution
- Step 1: Write the proportion equation
154,215.24 : 212,841.12 = 93,804.83 : x - Step 2: Convert to fraction form
154,215.24/212,841.12 = 93,804.83/x - Step 3: Cross multiply
154,215.24x = 212,841.12 × 93,804.83 - Step 4: Simplify right side
154,215.24x = 19,965,525,833.91 - Step 5: Solve for x
x = 19,965,525,833.91/154,215.24 - Step 6: Final answer
x = 129,465.32
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1.5x scale
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.