Finding the Fourth Proportional to 130,622.10, 195,929.37 and 77,677.26
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Solution
The fourth proportional to 130,622.10, 195,929.37 and 77,677.26 is: 116,513.64
Step by Step Solution
- Step 1: Write the proportion equation
130,622.10 : 195,929.37 = 77,677.26 : x - Step 2: Convert to fraction form
130,622.10/195,929.37 = 77,677.26/x - Step 3: Cross multiply
130,622.10x = 195,929.37 × 77,677.26 - Step 4: Simplify right side
130,622.10x = 15,219,256,615.13 - Step 5: Solve for x
x = 15,219,256,615.13/130,622.10 - Step 6: Final answer
x = 116,513.64
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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.