Finding the Fourth Proportional to 101,177.19, 139,623.74 and 55,855.23
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Solution
The fourth proportional to 101,177.19, 139,623.74 and 55,855.23 is: 77,079.79
Step by Step Solution
- Step 1: Write the proportion equation
101,177.19 : 139,623.74 = 55,855.23 : x - Step 2: Convert to fraction form
101,177.19/139,623.74 = 55,855.23/x - Step 3: Cross multiply
101,177.19x = 139,623.74 × 55,855.23 - Step 4: Simplify right side
101,177.19x = 7,798,716,111.16 - Step 5: Solve for x
x = 7,798,716,111.16/101,177.19 - Step 6: Final answer
x = 77,079.79
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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.