Finding the Fourth Proportional to 156,987.36, 235,489.20 and 51,814.53
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Solution
The fourth proportional to 156,987.36, 235,489.20 and 51,814.53 is: 77,724.49
Step by Step Solution
- Step 1: Write the proportion equation
156,987.36 : 235,489.20 = 51,814.53 : x - Step 2: Convert to fraction form
156,987.36/235,489.20 = 51,814.53/x - Step 3: Cross multiply
156,987.36x = 235,489.20 × 51,814.53 - Step 4: Simplify right side
156,987.36x = 12,201,762,218.08 - Step 5: Solve for x
x = 12,201,762,218.08/156,987.36 - Step 6: Final answer
x = 77,724.49
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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.