Finding the Fourth Proportional to 154,320.68, 213,055.44 and 100,698.68
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Solution
The fourth proportional to 154,320.68, 213,055.44 and 100,698.68 is: 139,024.80
Step by Step Solution
- Step 1: Write the proportion equation
154,320.68 : 213,055.44 = 100,698.68 : x - Step 2: Convert to fraction form
154,320.68/213,055.44 = 100,698.68/x - Step 3: Cross multiply
154,320.68x = 213,055.44 × 100,698.68 - Step 4: Simplify right side
154,320.68x = 21,454,401,574.82 - Step 5: Solve for x
x = 21,454,401,574.82/154,320.68 - Step 6: Final answer
x = 139,024.80
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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.