Finding the Fourth Proportional to 151,374.21, 208,901.61 and 83,395.77
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Solution
The fourth proportional to 151,374.21, 208,901.61 and 83,395.77 is: 115,089.03
Step by Step Solution
- Step 1: Write the proportion equation
151,374.21 : 208,901.61 = 83,395.77 : x - Step 2: Convert to fraction form
151,374.21/208,901.61 = 83,395.77/x - Step 3: Cross multiply
151,374.21x = 208,901.61 × 83,395.77 - Step 4: Simplify right side
151,374.21x = 17,421,510,620.19 - Step 5: Solve for x
x = 17,421,510,620.19/151,374.21 - Step 6: Final answer
x = 115,089.03
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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.