Finding the Fourth Proportional to 121,536.60, 182,303.70 and 38,430.60
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Solution
The fourth proportional to 121,536.60, 182,303.70 and 38,430.60 is: 57,645.52
Step by Step Solution
- Step 1: Write the proportion equation
121,536.60 : 182,303.70 = 38,430.60 : x - Step 2: Convert to fraction form
121,536.60/182,303.70 = 38,430.60/x - Step 3: Cross multiply
121,536.60x = 182,303.70 × 38,430.60 - Step 4: Simplify right side
121,536.60x = 7,006,040,573.22 - Step 5: Solve for x
x = 7,006,040,573.22/121,536.60 - Step 6: Final answer
x = 57,645.52
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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.