Finding the Fourth Proportional to 128,161.41, 176,862.00 and 70,804.68
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Solution
The fourth proportional to 128,161.41, 176,862.00 and 70,804.68 is: 97,710.05
Step by Step Solution
- Step 1: Write the proportion equation
128,161.41 : 176,862.00 = 70,804.68 : x - Step 2: Convert to fraction form
128,161.41/176,862.00 = 70,804.68/x - Step 3: Cross multiply
128,161.41x = 176,862.00 × 70,804.68 - Step 4: Simplify right side
128,161.41x = 12,522,657,513.02 - Step 5: Solve for x
x = 12,522,657,513.02/128,161.41 - Step 6: Final answer
x = 97,710.05
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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.