Finding the Fourth Proportional to 101,184.68, 139,635.06 and 55,862.75
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Solution
The fourth proportional to 101,184.68, 139,635.06 and 55,862.75 is: 77,090.70
Step by Step Solution
- Step 1: Write the proportion equation
101,184.68 : 139,635.06 = 55,862.75 : x - Step 2: Convert to fraction form
101,184.68/139,635.06 = 55,862.75/x - Step 3: Cross multiply
101,184.68x = 139,635.06 × 55,862.75 - Step 4: Simplify right side
101,184.68x = 7,800,397,610.18 - Step 5: Solve for x
x = 7,800,397,610.18/101,184.68 - Step 6: Final answer
x = 77,090.70
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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.