Finding the Fourth Proportional to 112,750.06, 155,699.68 and 84,406.54
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Solution
The fourth proportional to 112,750.06, 155,699.68 and 84,406.54 is: 116,559.33
Step by Step Solution
- Step 1: Write the proportion equation
112,750.06 : 155,699.68 = 84,406.54 : x - Step 2: Convert to fraction form
112,750.06/155,699.68 = 84,406.54/x - Step 3: Cross multiply
112,750.06x = 155,699.68 × 84,406.54 - Step 4: Simplify right side
112,750.06x = 13,142,071,267.91 - Step 5: Solve for x
x = 13,142,071,267.91/112,750.06 - Step 6: Final answer
x = 116,559.33
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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.