Finding the Fourth Proportional to 112,306.24, 154,982.93 and 61,319.41
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Solution
The fourth proportional to 112,306.24, 154,982.93 and 61,319.41 is: 84,620.96
Step by Step Solution
- Step 1: Write the proportion equation
112,306.24 : 154,982.93 = 61,319.41 : x - Step 2: Convert to fraction form
112,306.24/154,982.93 = 61,319.41/x - Step 3: Cross multiply
112,306.24x = 154,982.93 × 61,319.41 - Step 4: Simplify right side
112,306.24x = 9,503,461,206.06 - Step 5: Solve for x
x = 9,503,461,206.06/112,306.24 - Step 6: Final answer
x = 84,620.96
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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.