Finding the Fourth Proportional to 149,307.17, 206,038.08 and 81,323.06
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Solution
The fourth proportional to 149,307.17, 206,038.08 and 81,323.06 is: 112,222.65
Step by Step Solution
- Step 1: Write the proportion equation
149,307.17 : 206,038.08 = 81,323.06 : x - Step 2: Convert to fraction form
149,307.17/206,038.08 = 81,323.06/x - Step 3: Cross multiply
149,307.17x = 206,038.08 × 81,323.06 - Step 4: Simplify right side
149,307.17x = 16,755,646,111.93 - Step 5: Solve for x
x = 16,755,646,111.93/149,307.17 - Step 6: Final answer
x = 112,222.65
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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.