Finding the Fourth Proportional to 130,652.64, 180,295.20 and 74,067.84
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Solution
The fourth proportional to 130,652.64, 180,295.20 and 74,067.84 is: 102,210.53
Step by Step Solution
- Step 1: Write the proportion equation
130,652.64 : 180,295.20 = 74,067.84 : x - Step 2: Convert to fraction form
130,652.64/180,295.20 = 74,067.84/x - Step 3: Cross multiply
130,652.64x = 180,295.20 × 74,067.84 - Step 4: Simplify right side
130,652.64x = 13,354,076,026.37 - Step 5: Solve for x
x = 13,354,076,026.37/130,652.64 - Step 6: Final answer
x = 102,210.53
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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.