Finding the Fourth Proportional to 124,044.08, 171,259.92 and 81,675.68
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Solution
The fourth proportional to 124,044.08, 171,259.92 and 81,675.68 is: 112,764.51
Step by Step Solution
- Step 1: Write the proportion equation
124,044.08 : 171,259.92 = 81,675.68 : x - Step 2: Convert to fraction form
124,044.08/171,259.92 = 81,675.68/x - Step 3: Cross multiply
124,044.08x = 171,259.92 × 81,675.68 - Step 4: Simplify right side
124,044.08x = 13,987,770,422.75 - Step 5: Solve for x
x = 13,987,770,422.75/124,044.08 - Step 6: Final answer
x = 112,764.51
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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.