Finding the Fourth Proportional to 120,356.93, 180,248.84 and 69,649.06
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Solution
The fourth proportional to 120,356.93, 180,248.84 and 69,649.06 is: 104,307.76
Step by Step Solution
- Step 1: Write the proportion equation
120,356.93 : 180,248.84 = 69,649.06 : x - Step 2: Convert to fraction form
120,356.93/180,248.84 = 69,649.06/x - Step 3: Cross multiply
120,356.93x = 180,248.84 × 69,649.06 - Step 4: Simplify right side
120,356.93x = 12,554,161,473.22 - Step 5: Solve for x
x = 12,554,161,473.22/120,356.93 - Step 6: Final answer
x = 104,307.76
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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.