Finding the Fourth Proportional to 119,435.76, 179,184.36 and 85,740.84
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Solution
The fourth proportional to 119,435.76, 179,184.36 and 85,740.84 is: 128,633.31
Step by Step Solution
- Step 1: Write the proportion equation
119,435.76 : 179,184.36 = 85,740.84 : x - Step 2: Convert to fraction form
119,435.76/179,184.36 = 85,740.84/x - Step 3: Cross multiply
119,435.76x = 179,184.36 × 85,740.84 - Step 4: Simplify right side
119,435.76x = 15,363,417,541.26 - Step 5: Solve for x
x = 15,363,417,541.26/119,435.76 - Step 6: Final answer
x = 128,633.31
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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.