Finding the Fourth Proportional to 135,741.03, 202,509.35 and 128,392.71
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Solution
The fourth proportional to 135,741.03, 202,509.35 and 128,392.71 is: 191,546.54
Step by Step Solution
- Step 1: Write the proportion equation
135,741.03 : 202,509.35 = 128,392.71 : x - Step 2: Convert to fraction form
135,741.03/202,509.35 = 128,392.71/x - Step 3: Cross multiply
135,741.03x = 202,509.35 × 128,392.71 - Step 4: Simplify right side
135,741.03x = 26,000,724,246.84 - Step 5: Solve for x
x = 26,000,724,246.84/135,741.03 - Step 6: Final answer
x = 191,546.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.