Finding the Fourth Proportional to 151,903.91, 209,621.02 and 87,368.26
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Solution
The fourth proportional to 151,903.91, 209,621.02 and 87,368.26 is: 120,564.53
Step by Step Solution
- Step 1: Write the proportion equation
151,903.91 : 209,621.02 = 87,368.26 : x - Step 2: Convert to fraction form
151,903.91/209,621.02 = 87,368.26/x - Step 3: Cross multiply
151,903.91x = 209,621.02 × 87,368.26 - Step 4: Simplify right side
151,903.91x = 18,314,223,776.83 - Step 5: Solve for x
x = 18,314,223,776.83/151,903.91 - Step 6: Final answer
x = 120,564.53
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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.