Finding the Fourth Proportional to 149,746.03, 206,868.12 and 129,567.88
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Solution
The fourth proportional to 149,746.03, 206,868.12 and 129,567.88 is: 178,992.82
Step by Step Solution
- Step 1: Write the proportion equation
149,746.03 : 206,868.12 = 129,567.88 : x - Step 2: Convert to fraction form
149,746.03/206,868.12 = 129,567.88/x - Step 3: Cross multiply
149,746.03x = 206,868.12 × 129,567.88 - Step 4: Simplify right side
149,746.03x = 26,803,463,716.69 - Step 5: Solve for x
x = 26,803,463,716.69/149,746.03 - Step 6: Final answer
x = 178,992.82
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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.