Finding the Fourth Proportional to 162,854.64, 243,921.06 and 125,137.08
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Solution
The fourth proportional to 162,854.64, 243,921.06 and 125,137.08 is: 187,428.31
Step by Step Solution
- Step 1: Write the proportion equation
162,854.64 : 243,921.06 = 125,137.08 : x - Step 2: Convert to fraction form
162,854.64/243,921.06 = 125,137.08/x - Step 3: Cross multiply
162,854.64x = 243,921.06 × 125,137.08 - Step 4: Simplify right side
162,854.64x = 30,523,569,198.90 - Step 5: Solve for x
x = 30,523,569,198.90/162,854.64 - Step 6: Final answer
x = 187,428.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.