Finding the Fourth Proportional to 128,545.80, 192,588.30 and 110,113.80
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Solution
The fourth proportional to 128,545.80, 192,588.30 and 110,113.80 is: 164,973.34
Step by Step Solution
- Step 1: Write the proportion equation
128,545.80 : 192,588.30 = 110,113.80 : x - Step 2: Convert to fraction form
128,545.80/192,588.30 = 110,113.80/x - Step 3: Cross multiply
128,545.80x = 192,588.30 × 110,113.80 - Step 4: Simplify right side
128,545.80x = 21,206,629,548.54 - Step 5: Solve for x
x = 21,206,629,548.54/128,545.80 - Step 6: Final answer
x = 164,973.34
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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.