Finding the Fourth Proportional to 134,461.40, 201,692.10 and 87,459.80
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Solution
The fourth proportional to 134,461.40, 201,692.10 and 87,459.80 is: 131,189.70
Step by Step Solution
- Step 1: Write the proportion equation
134,461.40 : 201,692.10 = 87,459.80 : x - Step 2: Convert to fraction form
134,461.40/201,692.10 = 87,459.80/x - Step 3: Cross multiply
134,461.40x = 201,692.10 × 87,459.80 - Step 4: Simplify right side
134,461.40x = 17,639,950,727.58 - Step 5: Solve for x
x = 17,639,950,727.58/134,461.40 - Step 6: Final answer
x = 131,189.70
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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.