Finding the Fourth Proportional to 97,966.04, 135,221.87 and 63,979.66
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Solution
The fourth proportional to 97,966.04, 135,221.87 and 63,979.66 is: 88,310.70
Step by Step Solution
- Step 1: Write the proportion equation
97,966.04 : 135,221.87 = 63,979.66 : x - Step 2: Convert to fraction form
97,966.04/135,221.87 = 63,979.66/x - Step 3: Cross multiply
97,966.04x = 135,221.87 × 63,979.66 - Step 4: Simplify right side
97,966.04x = 8,651,449,136.07 - Step 5: Solve for x
x = 8,651,449,136.07/97,966.04 - Step 6: Final answer
x = 88,310.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.