Finding the Fourth Proportional to 156,986.36, 235,487.70 and 51,813.53
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Solution
The fourth proportional to 156,986.36, 235,487.70 and 51,813.53 is: 77,722.98
Step by Step Solution
- Step 1: Write the proportion equation
156,986.36 : 235,487.70 = 51,813.53 : x - Step 2: Convert to fraction form
156,986.36/235,487.70 = 51,813.53/x - Step 3: Cross multiply
156,986.36x = 235,487.70 × 51,813.53 - Step 4: Simplify right side
156,986.36x = 12,201,447,831.14 - Step 5: Solve for x
x = 12,201,447,831.14/156,986.36 - Step 6: Final answer
x = 77,722.98
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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.