Finding the Fourth Proportional to 131,541.12, 197,263.08 and 47,278.62
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Solution
The fourth proportional to 131,541.12, 197,263.08 and 47,278.62 is: 70,900.46
Step by Step Solution
- Step 1: Write the proportion equation
131,541.12 : 197,263.08 = 47,278.62 : x - Step 2: Convert to fraction form
131,541.12/197,263.08 = 47,278.62/x - Step 3: Cross multiply
131,541.12x = 197,263.08 × 47,278.62 - Step 4: Simplify right side
131,541.12x = 9,326,326,199.35 - Step 5: Solve for x
x = 9,326,326,199.35/131,541.12 - Step 6: Final answer
x = 70,900.46
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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.