Finding the Fourth Proportional to 139,763.68, 192,775.04 and 135,134.80
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Solution
The fourth proportional to 139,763.68, 192,775.04 and 135,134.80 is: 186,390.46
Step by Step Solution
- Step 1: Write the proportion equation
139,763.68 : 192,775.04 = 135,134.80 : x - Step 2: Convert to fraction form
139,763.68/192,775.04 = 135,134.80/x - Step 3: Cross multiply
139,763.68x = 192,775.04 × 135,134.80 - Step 4: Simplify right side
139,763.68x = 26,050,616,475.39 - Step 5: Solve for x
x = 26,050,616,475.39/139,763.68 - Step 6: Final answer
x = 186,390.46
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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.