Finding the Fourth Proportional to 140,122.42, 210,177.74 and 65,216.80
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Solution
The fourth proportional to 140,122.42, 210,177.74 and 65,216.80 is: 97,822.45
Step by Step Solution
- Step 1: Write the proportion equation
140,122.42 : 210,177.74 = 65,216.80 : x - Step 2: Convert to fraction form
140,122.42/210,177.74 = 65,216.80/x - Step 3: Cross multiply
140,122.42x = 210,177.74 × 65,216.80 - Step 4: Simplify right side
140,122.42x = 13,707,118,583.14 - Step 5: Solve for x
x = 13,707,118,583.14/140,122.42 - Step 6: Final answer
x = 97,822.45
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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.