Finding the Fourth Proportional to 145,993.88, 201,471.75 and 78,925.88
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Solution
The fourth proportional to 145,993.88, 201,471.75 and 78,925.88 is: 108,917.82
Step by Step Solution
- Step 1: Write the proportion equation
145,993.88 : 201,471.75 = 78,925.88 : x - Step 2: Convert to fraction form
145,993.88/201,471.75 = 78,925.88/x - Step 3: Cross multiply
145,993.88x = 201,471.75 × 78,925.88 - Step 4: Simplify right side
145,993.88x = 15,901,334,156.53 - Step 5: Solve for x
x = 15,901,334,156.53/145,993.88 - Step 6: Final answer
x = 108,917.82
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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.