Finding the Fourth Proportional to 124,193.66, 171,438.93 and 93,987.54
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Solution
The fourth proportional to 124,193.66, 171,438.93 and 93,987.54 is: 129,741.92
Step by Step Solution
- Step 1: Write the proportion equation
124,193.66 : 171,438.93 = 93,987.54 : x - Step 2: Convert to fraction form
124,193.66/171,438.93 = 93,987.54/x - Step 3: Cross multiply
124,193.66x = 171,438.93 × 93,987.54 - Step 4: Simplify right side
124,193.66x = 16,113,123,290.93 - Step 5: Solve for x
x = 16,113,123,290.93/124,193.66 - Step 6: Final answer
x = 129,741.92
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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.