Finding the Fourth Proportional to 128,073.04, 192,124.88 and 39,314.88
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Solution
The fourth proportional to 128,073.04, 192,124.88 and 39,314.88 is: 58,977.02
Step by Step Solution
- Step 1: Write the proportion equation
128,073.04 : 192,124.88 = 39,314.88 : x - Step 2: Convert to fraction form
128,073.04/192,124.88 = 39,314.88/x - Step 3: Cross multiply
128,073.04x = 192,124.88 × 39,314.88 - Step 4: Simplify right side
128,073.04x = 7,553,366,602.21 - Step 5: Solve for x
x = 7,553,366,602.21/128,073.04 - Step 6: Final answer
x = 58,977.02
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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.