Finding the Fourth Proportional to 156,154.73, 215,491.74 and 84,533.18
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Solution
The fourth proportional to 156,154.73, 215,491.74 and 84,533.18 is: 116,654.82
Step by Step Solution
- Step 1: Write the proportion equation
156,154.73 : 215,491.74 = 84,533.18 : x - Step 2: Convert to fraction form
156,154.73/215,491.74 = 84,533.18/x - Step 3: Cross multiply
156,154.73x = 215,491.74 × 84,533.18 - Step 4: Simplify right side
156,154.73x = 18,216,202,045.93 - Step 5: Solve for x
x = 18,216,202,045.93/156,154.73 - Step 6: Final answer
x = 116,654.82
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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.