Finding the Fourth Proportional to 97,209.36, 134,069.58 and 81,626.85
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Solution
The fourth proportional to 97,209.36, 134,069.58 and 81,626.85 is: 112,578.43
Step by Step Solution
- Step 1: Write the proportion equation
97,209.36 : 134,069.58 = 81,626.85 : x - Step 2: Convert to fraction form
97,209.36/134,069.58 = 81,626.85/x - Step 3: Cross multiply
97,209.36x = 134,069.58 × 81,626.85 - Step 4: Simplify right side
97,209.36x = 10,943,677,496.22 - Step 5: Solve for x
x = 10,943,677,496.22/97,209.36 - Step 6: Final answer
x = 112,578.43
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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.