Finding the Fourth Proportional to 140,054.49, 193,267.49 and 79,616.75
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Solution
The fourth proportional to 140,054.49, 193,267.49 and 79,616.75 is: 109,866.72
Step by Step Solution
- Step 1: Write the proportion equation
140,054.49 : 193,267.49 = 79,616.75 : x - Step 2: Convert to fraction form
140,054.49/193,267.49 = 79,616.75/x - Step 3: Cross multiply
140,054.49x = 193,267.49 × 79,616.75 - Step 4: Simplify right side
140,054.49x = 15,387,328,070.04 - Step 5: Solve for x
x = 15,387,328,070.04/140,054.49 - Step 6: Final answer
x = 109,866.72
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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.