Finding the Fourth Proportional to 108,360.74, 149,549.07 and 62,421.98
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Solution
The fourth proportional to 108,360.74, 149,549.07 and 62,421.98 is: 86,148.81
Step by Step Solution
- Step 1: Write the proportion equation
108,360.74 : 149,549.07 = 62,421.98 : x - Step 2: Convert to fraction form
108,360.74/149,549.07 = 62,421.98/x - Step 3: Cross multiply
108,360.74x = 149,549.07 × 62,421.98 - Step 4: Simplify right side
108,360.74x = 9,335,148,191.77 - Step 5: Solve for x
x = 9,335,148,191.77/108,360.74 - Step 6: Final answer
x = 86,148.81
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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.