Finding the Fourth Proportional to 122,145.24, 168,565.27 and 68,430.70
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Solution
The fourth proportional to 122,145.24, 168,565.27 and 68,430.70 is: 94,437.08
Step by Step Solution
- Step 1: Write the proportion equation
122,145.24 : 168,565.27 = 68,430.70 : x - Step 2: Convert to fraction form
122,145.24/168,565.27 = 68,430.70/x - Step 3: Cross multiply
122,145.24x = 168,565.27 × 68,430.70 - Step 4: Simplify right side
122,145.24x = 11,535,039,421.79 - Step 5: Solve for x
x = 11,535,039,421.79/122,145.24 - Step 6: Final answer
x = 94,437.08
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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.