Finding the Fourth Proportional to 129,924.91, 179,420.19 and 122,849.02
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Solution
The fourth proportional to 129,924.91, 179,420.19 and 122,849.02 is: 169,648.72
Step by Step Solution
- Step 1: Write the proportion equation
129,924.91 : 179,420.19 = 122,849.02 : x - Step 2: Convert to fraction form
129,924.91/179,420.19 = 122,849.02/x - Step 3: Cross multiply
129,924.91x = 179,420.19 × 122,849.02 - Step 4: Simplify right side
129,924.91x = 22,041,594,509.71 - Step 5: Solve for x
x = 22,041,594,509.71/129,924.91 - Step 6: Final answer
x = 169,648.72
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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.