Finding the Fourth Proportional to 101,330.63, 139,848.14 and 84,304.84
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Solution
The fourth proportional to 101,330.63, 139,848.14 and 84,304.84 is: 116,350.56
Step by Step Solution
- Step 1: Write the proportion equation
101,330.63 : 139,848.14 = 84,304.84 : x - Step 2: Convert to fraction form
101,330.63/139,848.14 = 84,304.84/x - Step 3: Cross multiply
101,330.63x = 139,848.14 × 84,304.84 - Step 4: Simplify right side
101,330.63x = 11,789,875,067.00 - Step 5: Solve for x
x = 11,789,875,067.00/101,330.63 - Step 6: Final answer
x = 116,350.56
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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.