Finding the Fourth Proportional to 145,714.44, 201,089.34 and 81,188.02
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Solution
The fourth proportional to 145,714.44, 201,089.34 and 81,188.02 is: 112,041.37
Step by Step Solution
- Step 1: Write the proportion equation
145,714.44 : 201,089.34 = 81,188.02 : x - Step 2: Convert to fraction form
145,714.44/201,089.34 = 81,188.02/x - Step 3: Cross multiply
145,714.44x = 201,089.34 × 81,188.02 - Step 4: Simplify right side
145,714.44x = 16,326,044,854.98 - Step 5: Solve for x
x = 16,326,044,854.98/145,714.44 - Step 6: Final answer
x = 112,041.37
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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.