Finding the Fourth Proportional to 130,930.24, 180,686.28 and 74,341.48
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Solution
The fourth proportional to 130,930.24, 180,686.28 and 74,341.48 is: 102,592.69
Step by Step Solution
- Step 1: Write the proportion equation
130,930.24 : 180,686.28 = 74,341.48 : x - Step 2: Convert to fraction form
130,930.24/180,686.28 = 74,341.48/x - Step 3: Cross multiply
130,930.24x = 180,686.28 × 74,341.48 - Step 4: Simplify right side
130,930.24x = 13,432,485,470.89 - Step 5: Solve for x
x = 13,432,485,470.89/130,930.24 - Step 6: Final answer
x = 102,592.69
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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.