Finding the Fourth Proportional to 133,612.21, 184,339.08 and 76,210.29
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Solution
The fourth proportional to 133,612.21, 184,339.08 and 76,210.29 is: 105,144.09
Step by Step Solution
- Step 1: Write the proportion equation
133,612.21 : 184,339.08 = 76,210.29 : x - Step 2: Convert to fraction form
133,612.21/184,339.08 = 76,210.29/x - Step 3: Cross multiply
133,612.21x = 184,339.08 × 76,210.29 - Step 4: Simplify right side
133,612.21x = 14,048,534,745.13 - Step 5: Solve for x
x = 14,048,534,745.13/133,612.21 - Step 6: Final answer
x = 105,144.09
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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.