Finding the Fourth Proportional to 135,746.53, 202,517.55 and 128,398.21
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Solution
The fourth proportional to 135,746.53, 202,517.55 and 128,398.21 is: 191,554.74
Step by Step Solution
- Step 1: Write the proportion equation
135,746.53 : 202,517.55 = 128,398.21 : x - Step 2: Convert to fraction form
135,746.53/202,517.55 = 128,398.21/x - Step 3: Cross multiply
135,746.53x = 202,517.55 × 128,398.21 - Step 4: Simplify right side
135,746.53x = 26,002,890,913.59 - Step 5: Solve for x
x = 26,002,890,913.59/135,746.53 - Step 6: Final answer
x = 191,554.74
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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.