Finding the Fourth Proportional to 156,274.99, 215,658.72 and 84,655.13
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Solution
The fourth proportional to 156,274.99, 215,658.72 and 84,655.13 is: 116,823.66
Step by Step Solution
- Step 1: Write the proportion equation
156,274.99 : 215,658.72 = 84,655.13 : x - Step 2: Convert to fraction form
156,274.99/215,658.72 = 84,655.13/x - Step 3: Cross multiply
156,274.99x = 215,658.72 × 84,655.13 - Step 4: Simplify right side
156,274.99x = 18,256,615,898.94 - Step 5: Solve for x
x = 18,256,615,898.94/156,274.99 - Step 6: Final answer
x = 116,823.66
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1.5x scale
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.