Finding the Fourth Proportional to 128,077.04, 192,130.88 and 39,318.88
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Solution
The fourth proportional to 128,077.04, 192,130.88 and 39,318.88 is: 58,983.02
Step by Step Solution
- Step 1: Write the proportion equation
128,077.04 : 192,130.88 = 39,318.88 : x - Step 2: Convert to fraction form
128,077.04/192,130.88 = 39,318.88/x - Step 3: Cross multiply
128,077.04x = 192,130.88 × 39,318.88 - Step 4: Simplify right side
128,077.04x = 7,554,371,015.01 - Step 5: Solve for x
x = 7,554,371,015.01/128,077.04 - Step 6: Final answer
x = 58,983.02
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1.5x scale
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.