Finding the Fourth Proportional to 135,605.50, 187,135.58 and 75,175.99
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Solution
The fourth proportional to 135,605.50, 187,135.58 and 75,175.99 is: 103,742.86
Step by Step Solution
- Step 1: Write the proportion equation
135,605.50 : 187,135.58 = 75,175.99 : x - Step 2: Convert to fraction form
135,605.50/187,135.58 = 75,175.99/x - Step 3: Cross multiply
135,605.50x = 187,135.58 × 75,175.99 - Step 4: Simplify right side
135,605.50x = 14,068,102,490.72 - Step 5: Solve for x
x = 14,068,102,490.72/135,605.50 - Step 6: Final answer
x = 103,742.86
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1.5x scale
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.