Finding the Fourth Proportional to 99,853.57, 137,948.24 and 65,480.08
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Solution
The fourth proportional to 99,853.57, 137,948.24 and 65,480.08 is: 90,461.08
Step by Step Solution
- Step 1: Write the proportion equation
99,853.57 : 137,948.24 = 65,480.08 : x - Step 2: Convert to fraction form
99,853.57/137,948.24 = 65,480.08/x - Step 3: Cross multiply
99,853.57x = 137,948.24 × 65,480.08 - Step 4: Simplify right side
99,853.57x = 9,032,861,684.38 - Step 5: Solve for x
x = 9,032,861,684.38/99,853.57 - Step 6: Final answer
x = 90,461.08
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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.