Finding the Fourth Proportional to 134,658.60, 201,817.80 and 68,117.10
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Solution
The fourth proportional to 134,658.60, 201,817.80 and 68,117.10 is: 102,089.60
Step by Step Solution
- Step 1: Write the proportion equation
134,658.60 : 201,817.80 = 68,117.10 : x - Step 2: Convert to fraction form
134,658.60/201,817.80 = 68,117.10/x - Step 3: Cross multiply
134,658.60x = 201,817.80 × 68,117.10 - Step 4: Simplify right side
134,658.60x = 13,747,243,264.38 - Step 5: Solve for x
x = 13,747,243,264.38/134,658.60 - Step 6: Final answer
x = 102,089.60
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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.