Finding the Fourth Proportional to 156,448.99, 215,899.41 and 84,828.93
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Solution
The fourth proportional to 156,448.99, 215,899.41 and 84,828.93 is: 117,063.82
Step by Step Solution
- Step 1: Write the proportion equation
156,448.99 : 215,899.41 = 84,828.93 : x - Step 2: Convert to fraction form
156,448.99/215,899.41 = 84,828.93/x - Step 3: Cross multiply
156,448.99x = 215,899.41 × 84,828.93 - Step 4: Simplify right side
156,448.99x = 18,314,515,937.93 - Step 5: Solve for x
x = 18,314,515,937.93/156,448.99 - Step 6: Final answer
x = 117,063.82
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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.