Finding the Fourth Proportional to 122,603.42, 169,197.12 and 68,887.40
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Solution
The fourth proportional to 122,603.42, 169,197.12 and 68,887.40 is: 95,067.08
Step by Step Solution
- Step 1: Write the proportion equation
122,603.42 : 169,197.12 = 68,887.40 : x - Step 2: Convert to fraction form
122,603.42/169,197.12 = 68,887.40/x - Step 3: Cross multiply
122,603.42x = 169,197.12 × 68,887.40 - Step 4: Simplify right side
122,603.42x = 11,655,549,684.29 - Step 5: Solve for x
x = 11,655,549,684.29/122,603.42 - Step 6: Final answer
x = 95,067.08
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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.