Finding the Fourth Proportional to 139,483.36, 192,491.24 and 79,054.12
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Solution
The fourth proportional to 139,483.36, 192,491.24 and 79,054.12 is: 109,097.07
Step by Step Solution
- Step 1: Write the proportion equation
139,483.36 : 192,491.24 = 79,054.12 : x - Step 2: Convert to fraction form
139,483.36/192,491.24 = 79,054.12/x - Step 3: Cross multiply
139,483.36x = 192,491.24 × 79,054.12 - Step 4: Simplify right side
139,483.36x = 15,217,225,585.91 - Step 5: Solve for x
x = 15,217,225,585.91/139,483.36 - Step 6: Final answer
x = 109,097.07
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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.