Finding the Fourth Proportional to 112,673.70, 155,489.70 and 62,372.70
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Solution
The fourth proportional to 112,673.70, 155,489.70 and 62,372.70 is: 86,074.32
Step by Step Solution
- Step 1: Write the proportion equation
112,673.70 : 155,489.70 = 62,372.70 : x - Step 2: Convert to fraction form
112,673.70/155,489.70 = 62,372.70/x - Step 3: Cross multiply
112,673.70x = 155,489.70 × 62,372.70 - Step 4: Simplify right side
112,673.70x = 9,698,312,411.19 - Step 5: Solve for x
x = 9,698,312,411.19/112,673.70 - Step 6: Final answer
x = 86,074.32
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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.