Finding the Fourth Proportional to 101,811.44, 152,721.96 and 84,009.08
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Solution
The fourth proportional to 101,811.44, 152,721.96 and 84,009.08 is: 126,017.58
Step by Step Solution
- Step 1: Write the proportion equation
101,811.44 : 152,721.96 = 84,009.08 : x - Step 2: Convert to fraction form
101,811.44/152,721.96 = 84,009.08/x - Step 3: Cross multiply
101,811.44x = 152,721.96 × 84,009.08 - Step 4: Simplify right side
101,811.44x = 12,830,031,355.40 - Step 5: Solve for x
x = 12,830,031,355.40/101,811.44 - Step 6: Final answer
x = 126,017.58
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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.