Finding the Fourth Proportional to 98,977.50, 148,220.10 and 69,256.08
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Solution
The fourth proportional to 98,977.50, 148,220.10 and 69,256.08 is: 103,711.89
Step by Step Solution
- Step 1: Write the proportion equation
98,977.50 : 148,220.10 = 69,256.08 : x - Step 2: Convert to fraction form
98,977.50/148,220.10 = 69,256.08/x - Step 3: Cross multiply
98,977.50x = 148,220.10 × 69,256.08 - Step 4: Simplify right side
98,977.50x = 10,265,143,103.21 - Step 5: Solve for x
x = 10,265,143,103.21/98,977.50 - Step 6: Final answer
x = 103,711.89
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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.