Finding the Fourth Proportional to 92,117.20, 138,175.80 and 63,977.80
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Solution
The fourth proportional to 92,117.20, 138,175.80 and 63,977.80 is: 95,966.70
Step by Step Solution
- Step 1: Write the proportion equation
92,117.20 : 138,175.80 = 63,977.80 : x - Step 2: Convert to fraction form
92,117.20/138,175.80 = 63,977.80/x - Step 3: Cross multiply
92,117.20x = 138,175.80 × 63,977.80 - Step 4: Simplify right side
92,117.20x = 8,840,183,697.24 - Step 5: Solve for x
x = 8,840,183,697.24/92,117.20 - Step 6: Final answer
x = 95,966.70
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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.