Finding the Fourth Proportional to 147,709.28, 221,518.81 and 97,106.21
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Solution
The fourth proportional to 147,709.28, 221,518.81 and 97,106.21 is: 145,629.66
Step by Step Solution
- Step 1: Write the proportion equation
147,709.28 : 221,518.81 = 97,106.21 : x - Step 2: Convert to fraction form
147,709.28/221,518.81 = 97,106.21/x - Step 3: Cross multiply
147,709.28x = 221,518.81 × 97,106.21 - Step 4: Simplify right side
147,709.28x = 21,510,851,927.29 - Step 5: Solve for x
x = 21,510,851,927.29/147,709.28 - Step 6: Final answer
x = 145,629.66
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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.