Finding the Fourth Proportional to 101,117.06, 139,536.11 and 55,786.17
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Solution
The fourth proportional to 101,117.06, 139,536.11 and 55,786.17 is: 76,981.92
Step by Step Solution
- Step 1: Write the proportion equation
101,117.06 : 139,536.11 = 55,786.17 : x - Step 2: Convert to fraction form
101,117.06/139,536.11 = 55,786.17/x - Step 3: Cross multiply
101,117.06x = 139,536.11 × 55,786.17 - Step 4: Simplify right side
101,117.06x = 7,784,185,293.06 - Step 5: Solve for x
x = 7,784,185,293.06/101,117.06 - Step 6: Final answer
x = 76,981.92
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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.