Finding the Fourth Proportional to 117,129.60, 161,911.24 and 104,507.88
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Solution
The fourth proportional to 117,129.60, 161,911.24 and 104,507.88 is: 144,463.91
Step by Step Solution
- Step 1: Write the proportion equation
117,129.60 : 161,911.24 = 104,507.88 : x - Step 2: Convert to fraction form
117,129.60/161,911.24 = 104,507.88/x - Step 3: Cross multiply
117,129.60x = 161,911.24 × 104,507.88 - Step 4: Simplify right side
117,129.60x = 16,920,999,572.13 - Step 5: Solve for x
x = 16,920,999,572.13/117,129.60 - Step 6: Final answer
x = 144,463.91
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.