Finding the Fourth Proportional to 135,126.62, 186,473.50 and 74,698.80
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Solution
The fourth proportional to 135,126.62, 186,473.50 and 74,698.80 is: 103,083.66
Step by Step Solution
- Step 1: Write the proportion equation
135,126.62 : 186,473.50 = 74,698.80 : x - Step 2: Convert to fraction form
135,126.62/186,473.50 = 74,698.80/x - Step 3: Cross multiply
135,126.62x = 186,473.50 × 74,698.80 - Step 4: Simplify right side
135,126.62x = 13,929,346,681.80 - Step 5: Solve for x
x = 13,929,346,681.80/135,126.62 - Step 6: Final answer
x = 103,083.66
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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.