Finding the Fourth Proportional to 138,448.55, 207,534.80 and 58,506.68
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Solution
The fourth proportional to 138,448.55, 207,534.80 and 58,506.68 is: 87,701.69
Step by Step Solution
- Step 1: Write the proportion equation
138,448.55 : 207,534.80 = 58,506.68 : x - Step 2: Convert to fraction form
138,448.55/207,534.80 = 58,506.68/x - Step 3: Cross multiply
138,448.55x = 207,534.80 × 58,506.68 - Step 4: Simplify right side
138,448.55x = 12,142,170,802.26 - Step 5: Solve for x
x = 12,142,170,802.26/138,448.55 - Step 6: Final answer
x = 87,701.69
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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.