Finding the Fourth Proportional to 128,549.58, 177,408.66 and 94,712.64
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Solution
The fourth proportional to 128,549.58, 177,408.66 and 94,712.64 is: 130,710.99
Step by Step Solution
- Step 1: Write the proportion equation
128,549.58 : 177,408.66 = 94,712.64 : x - Step 2: Convert to fraction form
128,549.58/177,408.66 = 94,712.64/x - Step 3: Cross multiply
128,549.58x = 177,408.66 × 94,712.64 - Step 4: Simplify right side
128,549.58x = 16,802,842,547.46 - Step 5: Solve for x
x = 16,802,842,547.46/128,549.58 - Step 6: Final answer
x = 130,710.99
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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.