Finding the Fourth Proportional to 130,941.99, 180,768.69 and 88,146.72
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Solution
The fourth proportional to 130,941.99, 180,768.69 and 88,146.72 is: 121,688.75
Step by Step Solution
- Step 1: Write the proportion equation
130,941.99 : 180,768.69 = 88,146.72 : x - Step 2: Convert to fraction form
130,941.99/180,768.69 = 88,146.72/x - Step 3: Cross multiply
130,941.99x = 180,768.69 × 88,146.72 - Step 4: Simplify right side
130,941.99x = 15,934,167,102.20 - Step 5: Solve for x
x = 15,934,167,102.20/130,941.99 - Step 6: Final answer
x = 121,688.75
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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.