Finding the Fourth Proportional to 156,987.62, 235,489.58 and 51,814.80
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Solution
The fourth proportional to 156,987.62, 235,489.58 and 51,814.80 is: 77,724.89
Step by Step Solution
- Step 1: Write the proportion equation
156,987.62 : 235,489.58 = 51,814.80 : x - Step 2: Convert to fraction form
156,987.62/235,489.58 = 51,814.80/x - Step 3: Cross multiply
156,987.62x = 235,489.58 × 51,814.80 - Step 4: Simplify right side
156,987.62x = 12,201,845,489.78 - Step 5: Solve for x
x = 12,201,845,489.78/156,987.62 - Step 6: Final answer
x = 77,724.89
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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.