Finding the Fourth Proportional to 112,705.09, 155,533.04 and 62,404.09
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Solution
The fourth proportional to 112,705.09, 155,533.04 and 62,404.09 is: 86,117.65
Step by Step Solution
- Step 1: Write the proportion equation
112,705.09 : 155,533.04 = 62,404.09 : x - Step 2: Convert to fraction form
112,705.09/155,533.04 = 62,404.09/x - Step 3: Cross multiply
112,705.09x = 155,533.04 × 62,404.09 - Step 4: Simplify right side
112,705.09x = 9,705,897,826.13 - Step 5: Solve for x
x = 9,705,897,826.13/112,705.09 - Step 6: Final answer
x = 86,117.65
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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.