Finding the Fourth Proportional to 156,068.24, 215,373.48 and 84,449.54
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Solution
The fourth proportional to 156,068.24, 215,373.48 and 84,449.54 is: 116,539.99
Step by Step Solution
- Step 1: Write the proportion equation
156,068.24 : 215,373.48 = 84,449.54 : x - Step 2: Convert to fraction form
156,068.24/215,373.48 = 84,449.54/x - Step 3: Cross multiply
156,068.24x = 215,373.48 × 84,449.54 - Step 4: Simplify right side
156,068.24x = 18,188,191,314.20 - Step 5: Solve for x
x = 18,188,191,314.20/156,068.24 - Step 6: Final answer
x = 116,539.99
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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.