Finding the Fourth Proportional to 156,549.98, 216,039.62 and 84,930.53
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Solution
The fourth proportional to 156,549.98, 216,039.62 and 84,930.53 is: 117,204.48
Step by Step Solution
- Step 1: Write the proportion equation
156,549.98 : 216,039.62 = 84,930.53 : x - Step 2: Convert to fraction form
156,549.98/216,039.62 = 84,930.53/x - Step 3: Cross multiply
156,549.98x = 216,039.62 × 84,930.53 - Step 4: Simplify right side
156,549.98x = 18,348,358,559.73 - Step 5: Solve for x
x = 18,348,358,559.73/156,549.98 - Step 6: Final answer
x = 117,204.48
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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.