Finding the Fourth Proportional to 137,461.48, 206,271.58 and 74,281.80
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Solution
The fourth proportional to 137,461.48, 206,271.58 and 74,281.80 is: 111,465.58
Step by Step Solution
- Step 1: Write the proportion equation
137,461.48 : 206,271.58 = 74,281.80 : x - Step 2: Convert to fraction form
137,461.48/206,271.58 = 74,281.80/x - Step 3: Cross multiply
137,461.48x = 206,271.58 × 74,281.80 - Step 4: Simplify right side
137,461.48x = 15,322,224,251.24 - Step 5: Solve for x
x = 15,322,224,251.24/137,461.48 - Step 6: Final answer
x = 111,465.58
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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.