Finding the Fourth Proportional to 156,948.24, 216,586.14 and 85,327.62
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Solution
The fourth proportional to 156,948.24, 216,586.14 and 85,327.62 is: 117,750.79
Step by Step Solution
- Step 1: Write the proportion equation
156,948.24 : 216,586.14 = 85,327.62 : x - Step 2: Convert to fraction form
156,948.24/216,586.14 = 85,327.62/x - Step 3: Cross multiply
156,948.24x = 216,586.14 × 85,327.62 - Step 4: Simplify right side
156,948.24x = 18,480,779,851.19 - Step 5: Solve for x
x = 18,480,779,851.19/156,948.24 - Step 6: Final answer
x = 117,750.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.