Finding the Fourth Proportional to 131,807.74, 197,512.08 and 87,275.02
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Solution
The fourth proportional to 131,807.74, 197,512.08 and 87,275.02 is: 130,780.41
Step by Step Solution
- Step 1: Write the proportion equation
131,807.74 : 197,512.08 = 87,275.02 : x - Step 2: Convert to fraction form
131,807.74/197,512.08 = 87,275.02/x - Step 3: Cross multiply
131,807.74x = 197,512.08 × 87,275.02 - Step 4: Simplify right side
131,807.74x = 17,237,870,732.24 - Step 5: Solve for x
x = 17,237,870,732.24/131,807.74 - Step 6: Final answer
x = 130,780.41
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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.