Finding the Fourth Proportional to 124,394.85, 171,665.19 and 70,697.70
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Solution
The fourth proportional to 124,394.85, 171,665.19 and 70,697.70 is: 97,562.99
Step by Step Solution
- Step 1: Write the proportion equation
124,394.85 : 171,665.19 = 70,697.70 : x - Step 2: Convert to fraction form
124,394.85/171,665.19 = 70,697.70/x - Step 3: Cross multiply
124,394.85x = 171,665.19 × 70,697.70 - Step 4: Simplify right side
124,394.85x = 12,136,334,103.06 - Step 5: Solve for x
x = 12,136,334,103.06/124,394.85 - Step 6: Final answer
x = 97,562.99
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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.