Finding the Fourth Proportional to 118,246.70, 177,574.85 and 83,430.70
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Solution
The fourth proportional to 118,246.70, 177,574.85 and 83,430.70 is: 125,290.55
Step by Step Solution
- Step 1: Write the proportion equation
118,246.70 : 177,574.85 = 83,430.70 : x - Step 2: Convert to fraction form
118,246.70/177,574.85 = 83,430.70/x - Step 3: Cross multiply
118,246.70x = 177,574.85 × 83,430.70 - Step 4: Simplify right side
118,246.70x = 14,815,194,037.90 - Step 5: Solve for x
x = 14,815,194,037.90/118,246.70 - Step 6: Final answer
x = 125,290.55
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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.