Finding the Fourth Proportional to 157,035.40, 216,689.14 and 106,158.80
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Solution
The fourth proportional to 157,035.40, 216,689.14 and 106,158.80 is: 146,485.82
Step by Step Solution
- Step 1: Write the proportion equation
157,035.40 : 216,689.14 = 106,158.80 : x - Step 2: Convert to fraction form
157,035.40/216,689.14 = 106,158.80/x - Step 3: Cross multiply
157,035.40x = 216,689.14 × 106,158.80 - Step 4: Simplify right side
157,035.40x = 23,003,459,075.43 - Step 5: Solve for x
x = 23,003,459,075.43/157,035.40 - Step 6: Final answer
x = 146,485.82
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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.