Finding the Fourth Proportional to 133,699.94, 184,589.79 and 86,036.12
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Solution
The fourth proportional to 133,699.94, 184,589.79 and 86,036.12 is: 118,783.82
Step by Step Solution
- Step 1: Write the proportion equation
133,699.94 : 184,589.79 = 86,036.12 : x - Step 2: Convert to fraction form
133,699.94/184,589.79 = 86,036.12/x - Step 3: Cross multiply
133,699.94x = 184,589.79 × 86,036.12 - Step 4: Simplify right side
133,699.94x = 15,881,389,323.21 - Step 5: Solve for x
x = 15,881,389,323.21/133,699.94 - Step 6: Final answer
x = 118,783.82
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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.