Finding the Fourth Proportional to 124,580.24, 171,915.36 and 70,857.68
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Solution
The fourth proportional to 124,580.24, 171,915.36 and 70,857.68 is: 97,780.54
Step by Step Solution
- Step 1: Write the proportion equation
124,580.24 : 171,915.36 = 70,857.68 : x - Step 2: Convert to fraction form
124,580.24/171,915.36 = 70,857.68/x - Step 3: Cross multiply
124,580.24x = 171,915.36 × 70,857.68 - Step 4: Simplify right side
124,580.24x = 12,181,523,565.96 - Step 5: Solve for x
x = 12,181,523,565.96/124,580.24 - Step 6: Final answer
x = 97,780.54
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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.