Finding the Fourth Proportional to 125,138.18, 187,731.81 and 46,253.09
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Solution
The fourth proportional to 125,138.18, 187,731.81 and 46,253.09 is: 69,388.71
Step by Step Solution
- Step 1: Write the proportion equation
125,138.18 : 187,731.81 = 46,253.09 : x - Step 2: Convert to fraction form
125,138.18/187,731.81 = 46,253.09/x - Step 3: Cross multiply
125,138.18x = 187,731.81 × 46,253.09 - Step 4: Simplify right side
125,138.18x = 8,683,176,773.12 - Step 5: Solve for x
x = 8,683,176,773.12/125,138.18 - Step 6: Final answer
x = 69,388.71
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1.5x scale
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.