Finding the Fourth Proportional to 96,637.20, 144,955.80 and 86,795.70
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Solution
The fourth proportional to 96,637.20, 144,955.80 and 86,795.70 is: 130,193.55
Step by Step Solution
- Step 1: Write the proportion equation
96,637.20 : 144,955.80 = 86,795.70 : x - Step 2: Convert to fraction form
96,637.20/144,955.80 = 86,795.70/x - Step 3: Cross multiply
96,637.20x = 144,955.80 × 86,795.70 - Step 4: Simplify right side
96,637.20x = 12,581,540,130.06 - Step 5: Solve for x
x = 12,581,540,130.06/96,637.20 - Step 6: Final answer
x = 130,193.55
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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.