Finding the Fourth Proportional to 97,219.80, 145,829.70 and 82,639.80
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Solution
The fourth proportional to 97,219.80, 145,829.70 and 82,639.80 is: 123,959.70
Step by Step Solution
- Step 1: Write the proportion equation
97,219.80 : 145,829.70 = 82,639.80 : x - Step 2: Convert to fraction form
97,219.80/145,829.70 = 82,639.80/x - Step 3: Cross multiply
97,219.80x = 145,829.70 × 82,639.80 - Step 4: Simplify right side
97,219.80x = 12,051,337,242.06 - Step 5: Solve for x
x = 12,051,337,242.06/97,219.80 - Step 6: Final answer
x = 123,959.70
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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.