Finding the Fourth Proportional to 135,758.60, 203,465.10 and 120,897.80
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Solution
The fourth proportional to 135,758.60, 203,465.10 and 120,897.80 is: 181,192.82
Step by Step Solution
- Step 1: Write the proportion equation
135,758.60 : 203,465.10 = 120,897.80 : x - Step 2: Convert to fraction form
135,758.60/203,465.10 = 120,897.80/x - Step 3: Cross multiply
135,758.60x = 203,465.10 × 120,897.80 - Step 4: Simplify right side
135,758.60x = 24,598,482,966.78 - Step 5: Solve for x
x = 24,598,482,966.78/135,758.60 - Step 6: Final answer
x = 181,192.82
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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.