Finding the Fourth Proportional to 84,746.90, 127,229.70 and 68,125.70
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Solution
The fourth proportional to 84,746.90, 127,229.70 and 68,125.70 is: 102,276.45
Step by Step Solution
- Step 1: Write the proportion equation
84,746.90 : 127,229.70 = 68,125.70 : x - Step 2: Convert to fraction form
84,746.90/127,229.70 = 68,125.70/x - Step 3: Cross multiply
84,746.90x = 127,229.70 × 68,125.70 - Step 4: Simplify right side
84,746.90x = 8,667,612,373.29 - Step 5: Solve for x
x = 8,667,612,373.29/84,746.90 - Step 6: Final answer
x = 102,276.45
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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.