Finding the Fourth Proportional to 151,044.63, 208,441.29 and 86,534.76
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Solution
The fourth proportional to 151,044.63, 208,441.29 and 86,534.76 is: 119,417.80
Step by Step Solution
- Step 1: Write the proportion equation
151,044.63 : 208,441.29 = 86,534.76 : x - Step 2: Convert to fraction form
151,044.63/208,441.29 = 86,534.76/x - Step 3: Cross multiply
151,044.63x = 208,441.29 × 86,534.76 - Step 4: Simplify right side
151,044.63x = 18,037,417,004.24 - Step 5: Solve for x
x = 18,037,417,004.24/151,044.63 - Step 6: Final answer
x = 119,417.80
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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.