Finding the Fourth Proportional to 132,117.60, 198,030.60 and 72,995.70
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Solution
The fourth proportional to 132,117.60, 198,030.60 and 72,995.70 is: 109,412.99
Step by Step Solution
- Step 1: Write the proportion equation
132,117.60 : 198,030.60 = 72,995.70 : x - Step 2: Convert to fraction form
132,117.60/198,030.60 = 72,995.70/x - Step 3: Cross multiply
132,117.60x = 198,030.60 × 72,995.70 - Step 4: Simplify right side
132,117.60x = 14,455,382,268.42 - Step 5: Solve for x
x = 14,455,382,268.42/132,117.60 - Step 6: Final answer
x = 109,412.99
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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.