Finding the Fourth Proportional to 130,773.94, 180,486.42 and 76,343.96
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Solution
The fourth proportional to 130,773.94, 180,486.42 and 76,343.96 is: 105,365.40
Step by Step Solution
- Step 1: Write the proportion equation
130,773.94 : 180,486.42 = 76,343.96 : x - Step 2: Convert to fraction form
130,773.94/180,486.42 = 76,343.96/x - Step 3: Cross multiply
130,773.94x = 180,486.42 × 76,343.96 - Step 4: Simplify right side
130,773.94x = 13,779,048,029.02 - Step 5: Solve for x
x = 13,779,048,029.02/130,773.94 - Step 6: Final answer
x = 105,365.40
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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.