Finding the Fourth Proportional to 161,603.24, 242,177.86 and 127,720.24
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Solution
The fourth proportional to 161,603.24, 242,177.86 and 127,720.24 is: 191,400.95
Step by Step Solution
- Step 1: Write the proportion equation
161,603.24 : 242,177.86 = 127,720.24 : x - Step 2: Convert to fraction form
161,603.24/242,177.86 = 127,720.24/x - Step 3: Cross multiply
161,603.24x = 242,177.86 × 127,720.24 - Step 4: Simplify right side
161,603.24x = 30,931,013,477.14 - Step 5: Solve for x
x = 30,931,013,477.14/161,603.24 - Step 6: Final answer
x = 191,400.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.