Finding the Fourth Proportional to 98,461.80, 147,692.70 and 97,878.60
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Solution
The fourth proportional to 98,461.80, 147,692.70 and 97,878.60 is: 146,817.90
Step by Step Solution
- Step 1: Write the proportion equation
98,461.80 : 147,692.70 = 97,878.60 : x - Step 2: Convert to fraction form
98,461.80/147,692.70 = 97,878.60/x - Step 3: Cross multiply
98,461.80x = 147,692.70 × 97,878.60 - Step 4: Simplify right side
98,461.80x = 14,455,954,706.22 - Step 5: Solve for x
x = 14,455,954,706.22/98,461.80 - Step 6: Final answer
x = 146,817.90
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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.