Finding the Fourth Proportional to 120,303.84, 180,336.68 and 57,012.06
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Solution
The fourth proportional to 120,303.84, 180,336.68 and 57,012.06 is: 85,461.66
Step by Step Solution
- Step 1: Write the proportion equation
120,303.84 : 180,336.68 = 57,012.06 : x - Step 2: Convert to fraction form
120,303.84/180,336.68 = 57,012.06/x - Step 3: Cross multiply
120,303.84x = 180,336.68 × 57,012.06 - Step 4: Simplify right side
120,303.84x = 10,281,365,620.36 - Step 5: Solve for x
x = 10,281,365,620.36/120,303.84 - Step 6: Final answer
x = 85,461.66
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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.