Finding the Fourth Proportional to 156,887.64, 216,506.63 and 85,267.68
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Solution
The fourth proportional to 156,887.64, 216,506.63 and 85,267.68 is: 117,670.32
Step by Step Solution
- Step 1: Write the proportion equation
156,887.64 : 216,506.63 = 85,267.68 : x - Step 2: Convert to fraction form
156,887.64/216,506.63 = 85,267.68/x - Step 3: Cross multiply
156,887.64x = 216,506.63 × 85,267.68 - Step 4: Simplify right side
156,887.64x = 18,461,018,044.72 - Step 5: Solve for x
x = 18,461,018,044.72/156,887.64 - Step 6: Final answer
x = 117,670.32
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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.