Finding the Fourth Proportional to 156,555.09, 216,044.37 and 84,934.53
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Solution
The fourth proportional to 156,555.09, 216,044.37 and 84,934.53 is: 117,208.75
Step by Step Solution
- Step 1: Write the proportion equation
156,555.09 : 216,044.37 = 84,934.53 : x - Step 2: Convert to fraction form
156,555.09/216,044.37 = 84,934.53/x - Step 3: Cross multiply
156,555.09x = 216,044.37 × 84,934.53 - Step 4: Simplify right side
156,555.09x = 18,349,627,025.10 - Step 5: Solve for x
x = 18,349,627,025.10/156,555.09 - Step 6: Final answer
x = 117,208.75
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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.