Finding the Fourth Proportional to 134,337.17, 201,432.80 and 66,720.87
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Solution
The fourth proportional to 134,337.17, 201,432.80 and 66,720.87 is: 100,045.07
Step by Step Solution
- Step 1: Write the proportion equation
134,337.17 : 201,432.80 = 66,720.87 : x - Step 2: Convert to fraction form
134,337.17/201,432.80 = 66,720.87/x - Step 3: Cross multiply
134,337.17x = 201,432.80 × 66,720.87 - Step 4: Simplify right side
134,337.17x = 13,439,771,328.93 - Step 5: Solve for x
x = 13,439,771,328.93/134,337.17 - Step 6: Final answer
x = 100,045.07
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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.