Finding the Fourth Proportional to 99,905.20, 137,588.52 and 97,727.92
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Solution
The fourth proportional to 99,905.20, 137,588.52 and 97,727.92 is: 134,589.99
Step by Step Solution
- Step 1: Write the proportion equation
99,905.20 : 137,588.52 = 97,727.92 : x - Step 2: Convert to fraction form
99,905.20/137,588.52 = 97,727.92/x - Step 3: Cross multiply
99,905.20x = 137,588.52 × 97,727.92 - Step 4: Simplify right side
99,905.20x = 13,446,239,875.48 - Step 5: Solve for x
x = 13,446,239,875.48/99,905.20 - Step 6: Final answer
x = 134,589.99
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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.