Finding the Fourth Proportional to 93,323.20, 139,984.80 and 84,137.80
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Solution
The fourth proportional to 93,323.20, 139,984.80 and 84,137.80 is: 126,206.70
Step by Step Solution
- Step 1: Write the proportion equation
93,323.20 : 139,984.80 = 84,137.80 : x - Step 2: Convert to fraction form
93,323.20/139,984.80 = 84,137.80/x - Step 3: Cross multiply
93,323.20x = 139,984.80 × 84,137.80 - Step 4: Simplify right side
93,323.20x = 11,778,013,105.44 - Step 5: Solve for x
x = 11,778,013,105.44/93,323.20 - Step 6: Final answer
x = 126,206.70
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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.