Finding the Fourth Proportional to 112,642.80, 168,526.80 and 73,276.80
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Solution
The fourth proportional to 112,642.80, 168,526.80 and 73,276.80 is: 109,630.66
Step by Step Solution
- Step 1: Write the proportion equation
112,642.80 : 168,526.80 = 73,276.80 : x - Step 2: Convert to fraction form
112,642.80/168,526.80 = 73,276.80/x - Step 3: Cross multiply
112,642.80x = 168,526.80 × 73,276.80 - Step 4: Simplify right side
112,642.80x = 12,349,104,618.24 - Step 5: Solve for x
x = 12,349,104,618.24/112,642.80 - Step 6: Final answer
x = 109,630.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.