Finding the Fourth Proportional to 122,503.36, 169,050.36 and 74,836.48
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Solution
The fourth proportional to 122,503.36, 169,050.36 and 74,836.48 is: 103,271.73
Step by Step Solution
- Step 1: Write the proportion equation
122,503.36 : 169,050.36 = 74,836.48 : x - Step 2: Convert to fraction form
122,503.36/169,050.36 = 74,836.48/x - Step 3: Cross multiply
122,503.36x = 169,050.36 × 74,836.48 - Step 4: Simplify right side
122,503.36x = 12,651,133,885.13 - Step 5: Solve for x
x = 12,651,133,885.13/122,503.36 - Step 6: Final answer
x = 103,271.73
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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.