Finding the Fourth Proportional to 128,495.58, 192,632.52 and 61,844.02
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Solution
The fourth proportional to 128,495.58, 192,632.52 and 61,844.02 is: 92,712.68
Step by Step Solution
- Step 1: Write the proportion equation
128,495.58 : 192,632.52 = 61,844.02 : x - Step 2: Convert to fraction form
128,495.58/192,632.52 = 61,844.02/x - Step 3: Cross multiply
128,495.58x = 192,632.52 × 61,844.02 - Step 4: Simplify right side
128,495.58x = 11,913,169,419.53 - Step 5: Solve for x
x = 11,913,169,419.53/128,495.58 - Step 6: Final answer
x = 92,712.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.