Finding the Fourth Proportional to 154,240.41, 212,862.62 and 86,263.71
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Solution
The fourth proportional to 154,240.41, 212,862.62 and 86,263.71 is: 119,049.99
Step by Step Solution
- Step 1: Write the proportion equation
154,240.41 : 212,862.62 = 86,263.71 : x - Step 2: Convert to fraction form
154,240.41/212,862.62 = 86,263.71/x - Step 3: Cross multiply
154,240.41x = 212,862.62 × 86,263.71 - Step 4: Simplify right side
154,240.41x = 18,362,319,451.06 - Step 5: Solve for x
x = 18,362,319,451.06/154,240.41 - Step 6: Final answer
x = 119,049.99
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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.