Finding the Fourth Proportional to 124,675.47, 172,054.94 and 74,364.75
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Solution
The fourth proportional to 124,675.47, 172,054.94 and 74,364.75 is: 102,625.02
Step by Step Solution
- Step 1: Write the proportion equation
124,675.47 : 172,054.94 = 74,364.75 : x - Step 2: Convert to fraction form
124,675.47/172,054.94 = 74,364.75/x - Step 3: Cross multiply
124,675.47x = 172,054.94 × 74,364.75 - Step 4: Simplify right side
124,675.47x = 12,794,822,227.54 - Step 5: Solve for x
x = 12,794,822,227.54/124,675.47 - Step 6: Final answer
x = 102,625.02
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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.