Finding the Fourth Proportional to 112,240.08, 154,948.45 and 86,689.08
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Solution
The fourth proportional to 112,240.08, 154,948.45 and 86,689.08 is: 119,675.06
Step by Step Solution
- Step 1: Write the proportion equation
112,240.08 : 154,948.45 = 86,689.08 : x - Step 2: Convert to fraction form
112,240.08/154,948.45 = 86,689.08/x - Step 3: Cross multiply
112,240.08x = 154,948.45 × 86,689.08 - Step 4: Simplify right side
112,240.08x = 13,432,338,144.48 - Step 5: Solve for x
x = 13,432,338,144.48/112,240.08 - Step 6: Final answer
x = 119,675.06
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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.