Finding the Fourth Proportional to 129,587.60, 194,467.80 and 59,430.80
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Solution
The fourth proportional to 129,587.60, 194,467.80 and 59,430.80 is: 89,185.82
Step by Step Solution
- Step 1: Write the proportion equation
129,587.60 : 194,467.80 = 59,430.80 : x - Step 2: Convert to fraction form
129,587.60/194,467.80 = 59,430.80/x - Step 3: Cross multiply
129,587.60x = 194,467.80 × 59,430.80 - Step 4: Simplify right side
129,587.60x = 11,557,376,928.24 - Step 5: Solve for x
x = 11,557,376,928.24/129,587.60 - Step 6: Final answer
x = 89,185.82
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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.