Finding the Fourth Proportional to 135,126.16, 202,776.28 and 72,840.08
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Solution
The fourth proportional to 135,126.16, 202,776.28 and 72,840.08 is: 109,307.04
Step by Step Solution
- Step 1: Write the proportion equation
135,126.16 : 202,776.28 = 72,840.08 : x - Step 2: Convert to fraction form
135,126.16/202,776.28 = 72,840.08/x - Step 3: Cross multiply
135,126.16x = 202,776.28 × 72,840.08 - Step 4: Simplify right side
135,126.16x = 14,770,240,457.30 - Step 5: Solve for x
x = 14,770,240,457.30/135,126.16 - Step 6: Final answer
x = 109,307.04
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1.5x scale
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.