Finding the Fourth Proportional to 131,400.04, 181,332.26 and 74,811.44
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Solution
The fourth proportional to 131,400.04, 181,332.26 and 74,811.44 is: 103,239.90
Step by Step Solution
- Step 1: Write the proportion equation
131,400.04 : 181,332.26 = 74,811.44 : x - Step 2: Convert to fraction form
131,400.04/181,332.26 = 74,811.44/x - Step 3: Cross multiply
131,400.04x = 181,332.26 × 74,811.44 - Step 4: Simplify right side
131,400.04x = 13,565,727,489.05 - Step 5: Solve for x
x = 13,565,727,489.05/131,400.04 - Step 6: Final answer
x = 103,239.90
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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.