Finding the Fourth Proportional to 128,960.84, 193,419.36 and 58,823.72
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Solution
The fourth proportional to 128,960.84, 193,419.36 and 58,823.72 is: 88,225.59
Step by Step Solution
- Step 1: Write the proportion equation
128,960.84 : 193,419.36 = 58,823.72 : x - Step 2: Convert to fraction form
128,960.84/193,419.36 = 58,823.72/x - Step 3: Cross multiply
128,960.84x = 193,419.36 × 58,823.72 - Step 4: Simplify right side
128,960.84x = 11,377,646,275.22 - Step 5: Solve for x
x = 11,377,646,275.22/128,960.84 - Step 6: Final answer
x = 88,225.59
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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.