Finding the Fourth Proportional to 102,368.94, 153,480.66 and 39,135.75
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Solution
The fourth proportional to 102,368.94, 153,480.66 and 39,135.75 is: 58,675.81
Step by Step Solution
- Step 1: Write the proportion equation
102,368.94 : 153,480.66 = 39,135.75 : x - Step 2: Convert to fraction form
102,368.94/153,480.66 = 39,135.75/x - Step 3: Cross multiply
102,368.94x = 153,480.66 × 39,135.75 - Step 4: Simplify right side
102,368.94x = 6,006,580,739.60 - Step 5: Solve for x
x = 6,006,580,739.60/102,368.94 - Step 6: Final answer
x = 58,675.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.