Finding the Fourth Proportional to 117,914.68, 162,718.50 and 70,157.08
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Solution
The fourth proportional to 117,914.68, 162,718.50 and 70,157.08 is: 96,814.53
Step by Step Solution
- Step 1: Write the proportion equation
117,914.68 : 162,718.50 = 70,157.08 : x - Step 2: Convert to fraction form
117,914.68/162,718.50 = 70,157.08/x - Step 3: Cross multiply
117,914.68x = 162,718.50 × 70,157.08 - Step 4: Simplify right side
117,914.68x = 11,415,854,821.98 - Step 5: Solve for x
x = 11,415,854,821.98/117,914.68 - Step 6: Final answer
x = 96,814.53
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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.