Finding the Fourth Proportional to 149,991.01, 206,989.80 and 101,607.74
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Solution
The fourth proportional to 149,991.01, 206,989.80 and 101,607.74 is: 140,220.17
Step by Step Solution
- Step 1: Write the proportion equation
149,991.01 : 206,989.80 = 101,607.74 : x - Step 2: Convert to fraction form
149,991.01/206,989.80 = 101,607.74/x - Step 3: Cross multiply
149,991.01x = 206,989.80 × 101,607.74 - Step 4: Simplify right side
149,991.01x = 21,031,765,127.13 - Step 5: Solve for x
x = 21,031,765,127.13/149,991.01 - Step 6: Final answer
x = 140,220.17
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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.