Finding the Fourth Proportional to 124,115.50, 171,280.74 and 67,528.09
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Solution
The fourth proportional to 124,115.50, 171,280.74 and 67,528.09 is: 93,189.50
Step by Step Solution
- Step 1: Write the proportion equation
124,115.50 : 171,280.74 = 67,528.09 : x - Step 2: Convert to fraction form
124,115.50/171,280.74 = 67,528.09/x - Step 3: Cross multiply
124,115.50x = 171,280.74 × 67,528.09 - Step 4: Simplify right side
124,115.50x = 11,566,261,225.99 - Step 5: Solve for x
x = 11,566,261,225.99/124,115.50 - Step 6: Final answer
x = 93,189.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.