Finding the Fourth Proportional to 122,176.96, 168,603.98 and 74,430.31
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Solution
The fourth proportional to 122,176.96, 168,603.98 and 74,430.31 is: 102,713.69
Step by Step Solution
- Step 1: Write the proportion equation
122,176.96 : 168,603.98 = 74,430.31 : x - Step 2: Convert to fraction form
122,176.96/168,603.98 = 74,430.31/x - Step 3: Cross multiply
122,176.96x = 168,603.98 × 74,430.31 - Step 4: Simplify right side
122,176.96x = 12,549,246,498.63 - Step 5: Solve for x
x = 12,549,246,498.63/122,176.96 - Step 6: Final answer
x = 102,713.69
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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.