Finding the Fourth Proportional to 153,829.82, 212,381.25 and 117,950.87
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Solution
The fourth proportional to 153,829.82, 212,381.25 and 117,950.87 is: 162,845.89
Step by Step Solution
- Step 1: Write the proportion equation
153,829.82 : 212,381.25 = 117,950.87 : x - Step 2: Convert to fraction form
153,829.82/212,381.25 = 117,950.87/x - Step 3: Cross multiply
153,829.82x = 212,381.25 × 117,950.87 - Step 4: Simplify right side
153,829.82x = 25,050,553,209.19 - Step 5: Solve for x
x = 25,050,553,209.19/153,829.82 - Step 6: Final answer
x = 162,845.89
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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.