Finding the Fourth Proportional to 101,134.60, 139,566.18 and 55,811.80
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Solution
The fourth proportional to 101,134.60, 139,566.18 and 55,811.80 is: 77,020.52
Step by Step Solution
- Step 1: Write the proportion equation
101,134.60 : 139,566.18 = 55,811.80 : x - Step 2: Convert to fraction form
101,134.60/139,566.18 = 55,811.80/x - Step 3: Cross multiply
101,134.60x = 139,566.18 × 55,811.80 - Step 4: Simplify right side
101,134.60x = 7,789,439,724.92 - Step 5: Solve for x
x = 7,789,439,724.92/101,134.60 - Step 6: Final answer
x = 77,020.52
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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.