Finding the Fourth Proportional to 122,774.08, 169,429.98 and 72,473.08
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Solution
The fourth proportional to 122,774.08, 169,429.98 and 72,473.08 is: 100,013.88
Step by Step Solution
- Step 1: Write the proportion equation
122,774.08 : 169,429.98 = 72,473.08 : x - Step 2: Convert to fraction form
122,774.08/169,429.98 = 72,473.08/x - Step 3: Cross multiply
122,774.08x = 169,429.98 × 72,473.08 - Step 4: Simplify right side
122,774.08x = 12,279,112,494.94 - Step 5: Solve for x
x = 12,279,112,494.94/122,774.08 - Step 6: Final answer
x = 100,013.88
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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.