Finding the Fourth Proportional to 134,714.64, 185,897.61 and 74,285.67
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Solution
The fourth proportional to 134,714.64, 185,897.61 and 74,285.67 is: 102,509.49
Step by Step Solution
- Step 1: Write the proportion equation
134,714.64 : 185,897.61 = 74,285.67 : x - Step 2: Convert to fraction form
134,714.64/185,897.61 = 74,285.67/x - Step 3: Cross multiply
134,714.64x = 185,897.61 × 74,285.67 - Step 4: Simplify right side
134,714.64x = 13,809,528,510.25 - Step 5: Solve for x
x = 13,809,528,510.25/134,714.64 - Step 6: Final answer
x = 102,509.49
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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.