Finding the Fourth Proportional to 134,663.99, 185,827.95 and 74,235.15
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Solution
The fourth proportional to 134,663.99, 185,827.95 and 74,235.15 is: 102,439.90
Step by Step Solution
- Step 1: Write the proportion equation
134,663.99 : 185,827.95 = 74,235.15 : x - Step 2: Convert to fraction form
134,663.99/185,827.95 = 74,235.15/x - Step 3: Cross multiply
134,663.99x = 185,827.95 × 74,235.15 - Step 4: Simplify right side
134,663.99x = 13,794,965,742.44 - Step 5: Solve for x
x = 13,794,965,742.44/134,663.99 - Step 6: Final answer
x = 102,439.90
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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.