Finding the Fourth Proportional to 149,028.95, 206,201.50 and 129,948.52
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Solution
The fourth proportional to 149,028.95, 206,201.50 and 129,948.52 is: 179,801.17
Step by Step Solution
- Step 1: Write the proportion equation
149,028.95 : 206,201.50 = 129,948.52 : x - Step 2: Convert to fraction form
149,028.95/206,201.50 = 129,948.52/x - Step 3: Cross multiply
149,028.95x = 206,201.50 × 129,948.52 - Step 4: Simplify right side
149,028.95x = 26,795,579,746.78 - Step 5: Solve for x
x = 26,795,579,746.78/149,028.95 - Step 6: Final answer
x = 179,801.17
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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.