Finding the Fourth Proportional to 156,742.12, 235,113.18 and 38,412.44
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Solution
The fourth proportional to 156,742.12, 235,113.18 and 38,412.44 is: 57,618.66
Step by Step Solution
- Step 1: Write the proportion equation
156,742.12 : 235,113.18 = 38,412.44 : x - Step 2: Convert to fraction form
156,742.12/235,113.18 = 38,412.44/x - Step 3: Cross multiply
156,742.12x = 235,113.18 × 38,412.44 - Step 4: Simplify right side
156,742.12x = 9,031,270,919.96 - Step 5: Solve for x
x = 9,031,270,919.96/156,742.12 - Step 6: Final answer
x = 57,618.66
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1.5x scale
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.