Finding the Fourth Proportional to 156,742.08, 216,304.02 and 85,122.12
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Solution
The fourth proportional to 156,742.08, 216,304.02 and 85,122.12 is: 117,468.50
Step by Step Solution
- Step 1: Write the proportion equation
156,742.08 : 216,304.02 = 85,122.12 : x - Step 2: Convert to fraction form
156,742.08/216,304.02 = 85,122.12/x - Step 3: Cross multiply
156,742.08x = 216,304.02 × 85,122.12 - Step 4: Simplify right side
156,742.08x = 18,412,256,746.92 - Step 5: Solve for x
x = 18,412,256,746.92/156,742.08 - Step 6: Final answer
x = 117,468.50
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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.