Finding the Fourth Proportional to 133,229.36, 183,854.34 and 72,798.68
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Solution
The fourth proportional to 133,229.36, 183,854.34 and 72,798.68 is: 100,460.99
Step by Step Solution
- Step 1: Write the proportion equation
133,229.36 : 183,854.34 = 72,798.68 : x - Step 2: Convert to fraction form
133,229.36/183,854.34 = 72,798.68/x - Step 3: Cross multiply
133,229.36x = 183,854.34 × 72,798.68 - Step 4: Simplify right side
133,229.36x = 13,384,353,264.27 - Step 5: Solve for x
x = 13,384,353,264.27/133,229.36 - Step 6: Final answer
x = 100,460.99
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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.