Finding the Fourth Proportional to 135,431.01, 186,925.91 and 90,110.91
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Solution
The fourth proportional to 135,431.01, 186,925.91 and 90,110.91 is: 124,373.75
Step by Step Solution
- Step 1: Write the proportion equation
135,431.01 : 186,925.91 = 90,110.91 : x - Step 2: Convert to fraction form
135,431.01/186,925.91 = 90,110.91/x - Step 3: Cross multiply
135,431.01x = 186,925.91 × 90,110.91 - Step 4: Simplify right side
135,431.01x = 16,844,062,701.15 - Step 5: Solve for x
x = 16,844,062,701.15/135,431.01 - Step 6: Final answer
x = 124,373.75
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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.