Finding the Fourth Proportional to 120,357.68, 180,565.36 and 37,251.68
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Solution
The fourth proportional to 120,357.68, 180,565.36 and 37,251.68 is: 55,886.45
Step by Step Solution
- Step 1: Write the proportion equation
120,357.68 : 180,565.36 = 37,251.68 : x - Step 2: Convert to fraction form
120,357.68/180,565.36 = 37,251.68/x - Step 3: Cross multiply
120,357.68x = 180,565.36 × 37,251.68 - Step 4: Simplify right side
120,357.68x = 6,726,363,009.80 - Step 5: Solve for x
x = 6,726,363,009.80/120,357.68 - Step 6: Final answer
x = 55,886.45
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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.