Finding the Fourth Proportional to 133,243.08, 183,867.60 and 72,801.68
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Solution
The fourth proportional to 133,243.08, 183,867.60 and 72,801.68 is: 100,462.03
Step by Step Solution
- Step 1: Write the proportion equation
133,243.08 : 183,867.60 = 72,801.68 : x - Step 2: Convert to fraction form
133,243.08/183,867.60 = 72,801.68/x - Step 3: Cross multiply
133,243.08x = 183,867.60 × 72,801.68 - Step 4: Simplify right side
133,243.08x = 13,385,870,177.57 - Step 5: Solve for x
x = 13,385,870,177.57/133,243.08 - Step 6: Final answer
x = 100,462.03
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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.