Finding the Fourth Proportional to 129,068.73, 193,351.05 and 84,560.31
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Solution
The fourth proportional to 129,068.73, 193,351.05 and 84,560.31 is: 126,675.34
Step by Step Solution
- Step 1: Write the proportion equation
129,068.73 : 193,351.05 = 84,560.31 : x - Step 2: Convert to fraction form
129,068.73/193,351.05 = 84,560.31/x - Step 3: Cross multiply
129,068.73x = 193,351.05 × 84,560.31 - Step 4: Simplify right side
129,068.73x = 16,349,824,726.83 - Step 5: Solve for x
x = 16,349,824,726.83/129,068.73 - Step 6: Final answer
x = 126,675.34
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1.5x scale
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.