Finding the Fourth Proportional to 137,281.10, 189,350.27 and 125,987.07
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Solution
The fourth proportional to 137,281.10, 189,350.27 and 125,987.07 is: 173,772.53
Step by Step Solution
- Step 1: Write the proportion equation
137,281.10 : 189,350.27 = 125,987.07 : x - Step 2: Convert to fraction form
137,281.10/189,350.27 = 125,987.07/x - Step 3: Cross multiply
137,281.10x = 189,350.27 × 125,987.07 - Step 4: Simplify right side
137,281.10x = 23,855,684,144.32 - Step 5: Solve for x
x = 23,855,684,144.32/137,281.10 - Step 6: Final answer
x = 173,772.53
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1.5x scale
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.