Finding the Fourth Proportional to 133,822.75, 184,675.40 and 74,206.75
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Solution
The fourth proportional to 133,822.75, 184,675.40 and 74,206.75 is: 102,405.32
Step by Step Solution
- Step 1: Write the proportion equation
133,822.75 : 184,675.40 = 74,206.75 : x - Step 2: Convert to fraction form
133,822.75/184,675.40 = 74,206.75/x - Step 3: Cross multiply
133,822.75x = 184,675.40 × 74,206.75 - Step 4: Simplify right side
133,822.75x = 13,704,161,238.95 - Step 5: Solve for x
x = 13,704,161,238.95/133,822.75 - Step 6: Final answer
x = 102,405.32
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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.